knock the bottom out of it 

To have vigorous sex, usually with a girl, although this is not always the case upstate. A synonym of beat it up.

Since it was Valentines Day, Benny decided to surprise his wife with a romantic evening. He sent a dozen roses to her office (that is, he left them in the kitchen for her), and then sat her down to a candlelight dinner. Next he took her out for a romantic moonlit walk on the beach. To cap off the evening, he took her under the boardwalk and knocked the bottom out of it. Then when she was least expecting it, he stuck it in her dumper. Sometimes women need more from the man in their lives than just "I love you" and the occasional bouquet of flowers. Yes, sometimes they just need a fat cock up their poop chute.

knock the bottom out of it by Nick D January 14, 2004