Keepin' the Dog in the Bath

The physical act of not only inserting ones testicle into another's anus during sex, but keeping it there for as long as possible. Generally anal sex is conducted before doing this in an effort to essentially "loosen things up." This "move" is performed by perves and shady boombastiqua's alike and is only recommended for such types (see shaddy boombastique). People on steroids with something to prove may actually attempt to insert both testicles simultaniously, although many believe this to be impossible (including myself).
*Note: "This shit is hard."
**Note: Keep in mind that you are on your own. Post-coital conversation following this act may be extremely awkward.

"Last night, I (Jon Yi) kept the dog in the bath for like 10 seconds. That shit hurt so bad but isn't it cool that I can say I did it? Isn't that cool?"

"I kept the dog in the bathtub for a personal record of 5 seconds one time. I wasnt walking the next day though."

Keepin' the Dog in the Bath by Jaminsky March 29, 2005

keeping the dog in the bathtub 

The act of fucking a woman in the pussy with your cock while simultaneaously sticking your balls in her arse, known as "keeping the dog in the bathtub" because it is as hard to pull of successfully as keeping your dog in the the bathtub while washing it.

See also plum fuck

"Hey Jeff, I was keeping the dog in the bathtub all last night with that ho, my balls still smell"

keeping the dog in the bathtub by DeadlyDave June 11, 2006