Dog in a tub 

While doing a woman from behind in her vagina, bringing one of your testicles up and over your penis and inserting it in her anus. Which is harder then getting a 'dog in a tub'....

Dog in a tub by Roostafy April 21, 2003

wet dog in a tub

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.

krishnan tried to achieve a wet dog in a tub, but it failed.

wet dog in a tub by joe February 18, 2004

Dog In A Bath Tub 

This is a proper name for when you attempt to insert your nuts into a girl's ass. It is so named because it can be just as hard as keeping a dog in the tub while giving it a bath.

I tried like hell to pull off a Dog In A Bath Tub on Suzy, but her queaf threw my balance off.

Dog In A Bath Tub by Harry Ballsonya March 19, 2003

Dog In A Bath Tub 

It means a dog in a bath tub.

Look at that dog in a bath tub!

Dog In A Bath Tub by latiaslatios November 16, 2016

Dog In A Bath Tub 

Trying to put your penis and nut sack inside a woman/man (what ever you prefer) anus all at the same time' hens the saying as it is as hard as.

Once i pulled off the dog in the bathtub, I found it was much harder to remove them then put them in.

Dog In A Bath Tub by whizzane December 30, 2003