when you try to insert both testicles into your partner's asshole. the phrase is referring to the inability to keep a dog in a bathtub, much like the inability to keep both your balls in their asshole.
by joe February 18, 2004
by Mike Fennelly is Hot April 01, 2003
When the storm killed the power I was with my girl and I gotta dog in the tub and one behind the couch.
by Dr. Steph July 08, 2021