Jokes on
You can mash potatoes, but you can't pee soup. (sorry sorry. Really. I've loved this joke since I was... oh.. six...)
Because it's two gross! (A gross is a measurement unit for "144". So 2 * 144 = 288. Or "two gross".)
Something I usually have after a long night of drinking.
The ability to tell a person to go to hell in such a way that they look forward to the trip.