for two cents

for two cents

For nothing or very little; without needing much or any encouragement or enticement. For two cents I would gladly knock him upside the head, with the way he's been acting lately.
See also: cent, two
Farlex Dictionary of Idioms.

for two cents

For nothing; for a petty sum. For example, For two cents I'd quit the club entirely. Similarly, like two cents, means "of little or no value or importance, worthless," as in She made me feel like two cents. The use of two cents in this sense is thought to be derived from a similar British use of twopence or tuppence, which dates from about 1600. The American coin was substituted in the 1800s, along with two bits, slang for 25 cents and also meaning "a petty sum." Similarly, put in one's two cents or two cents' worth , meaning "to express one's unsolicited opinion for whatever it is worth," dates from the late 1800s.
See also: cent, two
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • knock (one) dead
  • knock dead
  • knock 'em dead
  • knock somebody dead
  • knock someone dead
  • bang/knock your/their heads together
  • knock about with (one)
  • come running
  • knock (someone) down with a feather, to
  • knock (one's) block off
References in classic literature
One can not buy and pay for two cents' worth of clams without trouble and a quarrel.
For two cents I would have done these things, too; but nobody offered me two cents.
I sold it to Milty for two cents. Milty's collecting teeth."
For two cents I'd chuck the whole thing up an' go over to the employers.
Says I, for two cents I'd leave the blamed country and never come a-near it agin.
Ed was the band's initial drummer before Ramos took over and he was on board for the first full length album, Secret Swingers after which Ramos came on board for Two Cents Plus Tax and then Hurrah.
[Q:] A boy goes to the store and buys 10 apples for five cents, five oranges for three cents, and 19 pears for two cents. What planet are you on to get such prices?
grouses about how much Jack's first congressional victory cost him, is: "The kid could've bee elected for two cents - he's that good."