beat a dead horse, phrase
When a topic of conversation is talked about endlessly without any new contribution to the subject at hand.
Now, Jim, I don't want to beat a dead horse, however, let's talk about what to do with the broken ice box.
Added on November 21, 2011 by Nick N.
boner, noun
/bone-er/
A stupid mistake.
Did you see Jerry try to put the moves on Marlene? By golly, that guy sure made a huge boner!
Added on May 18, 2011 by Nick N