probably

if it sounds too good to be true, it probably is

If something seems more exciting, pleasing, or ideal than seems reasonable, then it likely isn't genuine, legitimate, or true. Yep, the bank made a mistake when they listed such a low asking price for the house. If it sounds too good to be true, it probably is, right? A: "The car looks like it's in pristine condition. Can you believe they want to sell it for just $2,000?" B: "I don't know, if it seems too good to be true, it probably is. I bet there's something wrong with it that they're not telling us."
See also: good, if, probably, sound

if something sounds too good to be true, it probably is

If something seems more exciting, pleasing, or ideal than seems reasonable, then it likely isn't genuine, legitimate, or true. Yep, the bank made a mistake when they listed such a low asking price for the house. If something sounds too good to be true, it probably is, right? A: "The car looks like it's in pristine condition. Can you believe they want to sell it for just $2,000?" B: "I don't know, if it seems too good to be true, it probably is. I bet there's something wrong with it that they're not telling us."
See also: good, if, probably, something, sound

might as well

Should (do something), typically because there is no reason not to. The deadline is today, but you might as well send it in anyway—they may still accept it. A: "Are you going to work late tonight?" B: "I might as well. I have nothing else going on."
See also: might, well
Farlex Dictionary of Idioms.

might as well

 and may as well
a phrase indicating that it is probably better to do something than not to do it. Bill: Should we try to get there for the first showing of the film? Jane: Might as well. Nothing else to do. Andy: May as well leave now. It doesn't matter if we arrive a little bit early. Jane: Why do we always have to be the first to arrive?
See also: might, well
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • if it sounds too good to be true, it probably is
  • if it sounds too good to be true, it usually is
  • if something sounds too good to be true, it probably is
  • if something sounds too good to be true, it usually is
  • Barbie doll
  • at face value
  • scrape (someone or something) up off (something)
  • play (someone's) game
  • play somebody's game
  • play someone's game
References in classic literature
I think the authoress's compatriots, who probably did not like her much better that she did them, jeered at the absurdity of Ulysses' conduct, and saw the Asinelli or "donkeys," not as the rock thrown by Polyphemus, but as the boat itself containing Ulysses and his men.
I am inclined to think it is interpolated (probably by the poetess herself) from the first of lines xi.
The famous dactylism, therefore, of the Odyssean line was probably suggested by that of the Ileadic rather than by a desire to accommodate sound to sense.
1834-1839) for the word [Greek],which is probably the same as
More probably the prophecy was an afterthought, intercalated, as I have already said, by the authoress when she changed her scheme.
{113} This cave, which is identifiable with singular completeness, is now called the "grotta del toro," probably a corruption of "tesoro," for it is held to contain a treasure.
She probably originally meant to call her Euryclea, but finding it not immediately easy to make Euryclea scan in xvii.
Dolius was probably exceptionally simple-minded, and his name was ironical.
Odyssey
Because most concrete ready-mix plants are probably computerized, all batch mixing will likely be done by computer.
Constructing new markets for spent foundry sand
Lasher: I think the Senate will probably, in the end, cave ...
'Senate will cave'
When respondents were asked if it is true that policemen are involved in the illegal drug trade, 68 percent said it is definitely or probably true, 26 percent were undecided, and 5 percent said it is definitely or probably not true.
Majority of Filipinos believe cops are involved in illegal drugs - survey
According to the survey results, which were released on Wednesday, 68 percent of Filipinos believe that allegations that police officers are involved in the illegal drug trade - with 29 percent of them tagging the accusation as 'definitely true' and 39 percent of them tagging it as 'probably true.' Only 5 percent said the accusation was 'definitely or probably not true,' while 26 percent said they were undecided.
SWS: Most Filipinos think cops into drugs, EJKs, planting evidence
In an exclusive interview with CNBC's Jim Cramer, Apple CEO Tim Cook said that the tech giant's growing ecosystem of products is "probably underappreciated" by people on Wall Street.
Apple CEO tells CNBC says ecosystem of products 'probably underappreciated'
THE Me Too movement has "probably made every woman feel for a minute like an idiot", Broadway star Kelli O'Hara has said.
'Me too makes us feel like idiots' UK BULLETINS
But Alan said: "He's looking at how quick can you get back and I think he'll give it a lash to try and get back for probably August, the six-month mark.
BERNARD TARGETS AUGUST