While receiving a blow job from your female friend, you proceed to showhorn BOTH testicles, as well as your shaft, completly into her mouth!
"I was so hard that when I put the dog in a bathtub she puked on my wang"
by Brad Comer January 11, 2008
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When you try to jam both of your nuts in a girl's asshole. It's supposed to be as difficult as keeping two live dogs in a bathtub together.
i got one nut in her ass, but i couldnt manage the two dogs in a bathtub.
by billy poopluvr May 4, 2004
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When a guy puts both his nuts in a girls ass.
Wow, that is as difficult as getting 2 dogs in a bathtub.
by I'm Rick Burd, Bitch April 2, 2004
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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"
by DeadlyDave June 5, 2006
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When you shove your dick, both balls, and both fists in a girl's asshole.
Oh man, I just did 5 dogs in a bathtub with Stacy's dad last night. It was cadaverific.
by Mia Butthurts February 16, 2017
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The act of inserting one's entire penis and scrotum into an anus or vagina. The difficulty of that feat is akin to getting three dogs to take a bath at once, hence the phrase 'three dogs in a bathtub.'
Fitting my whole package into Sarah was harder than putting 3 dogs in a bathtub.

Or:

Kelly was so wide open I put three dogs in the bathtub.
by Slime Church February 24, 2011
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You're screwing a girl in the ass. You try to get your nuts up in there as well. It's about as tough as trying to get the dog into the bathtub.
If you have a tuna can, it really is impossible to get the dog into the bathtub.
by oas August 27, 2006
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