make a boo-boo

make a boo-boo

To make a silly or trivial mistake. Co-opts the childish word "boo-boo," meaning a superficial injury. Don't stress over it, Bob, they're not going to fire you for making a boo-boo or two. I was trying to fix the carburetor, but I think I may have made a boo-boo.
See also: make
Farlex Dictionary of Idioms.

make a boo-boo

tv. to make an error. (see also boo-boo.) Everybody makes a boo-boo every now and then.
See also: make
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • booboo
  • boo-boo
  • boo
  • na-na na-na boo-boo
  • say boo
  • boo bird
  • boo-bird
  • tickety-boo
  • boo off
  • suction
References in periodicals archive
On page 41 of the July-August 2018 issue, they make a boo-boo concerning the 1952 All-Star Game, saying that the game was in 1954.