From the "Yippee-ki-yay, Mister Falcon" Department

From the TBS presentation of Nothing to Lose [modified for television broadcast]:

Tim Robbins: That's not the point. It's beetle-headed. It's only a matter of time until you do get caught.
Martin Lawrence: What is "beetle-headed"?
Tim Robbins: It's a synonym for "stupid".
Martin Lawrence: Oh yeah? Here's a synonym for "procreation": Forget you!

I think this actually makes the joke much funnier.