Another name for female nether region. "Nether region" is funny too. See also Body.
Straight from Wikipedia, "Badonkadonk is a slang term for a woman's buttocks that are voluptuously large yet firm..." Per Tracy Morgan, "One cheek goes up, badonkadonk; the other goes down, badonkadonk." See also Ass, Body.
Kind sir, might you lend a hand and add a funny euphemism?
What a man wearing a speedo is doing.
Has kept many a young man from going on a shooting spree. See also Sex.
I don't know where this came from, but when I was a kid and had to go to the bathroom in the woods, this is what we would say.