(I'm) not gonna lie

(I'm) not gonna lie

slang Used to indicate one's honest opinion about something, especially when that opinion may be unpopular, unexpected, or unfavorable. ("Gonna" is a colloquial spelling of "going to.") Ugh, I've been so bored this whole break! I'm not gonna lie, I'm kinda ready for school to start again. A: "The third movie in the series just ruined the whole franchise for me." B: "Really? It's always been my favorite one, not gonna lie." A: "And that's why I think women shouldn't enter politics." B: "Dude, not gonna lie, that all makes you sound like a misogynistic jerk."
See also: gonna, lie, not
Farlex Dictionary of Idioms.
See also:
  • gonna
  • (I'm) not going to lie
  • make a stand
  • take a firm line (on or against something)
  • take a firm line/stand
  • take a firm stand (on or against something)
  • NGL
  • hazard an opinion
  • dangerous ground
  • considered