The variables aren't necessarily related.
a STAGE CURTAIN? A: When you pull down the STAGE CURTAIN, the show is over, but when you pull down the UNDERWEAR..... it's SHOWTIME!!!
A cheeseburger can't feed your ego.
A PENNEtentiary!
I've already got that the frog called our car club to get toad, but that's about where my puns end.
Student: A variable who don't need no man