When you're "doing" a girl, and you try to get both your balls AND your dick inside of her (there isn't enough room for both).
by BAM -- I'm scene! January 31, 2005
 Get the Dog in the Bathtubmug.
Get the Dog in the Bathtubmug. The true meaning of attemting to instert your dick and nuts into a girl's lubed up ass and atttemting to keep them in. It is so named because it can be just as hard as keeping a dog in the tub while giving it a bath.
person 1: did you hear about Nik
person 2: no what happened
person 1: he did a dog in a bathtub to jess
person 2: hahahahahaha
person 2: no what happened
person 1: he did a dog in a bathtub to jess
person 2: hahahahahaha
by demon slayer 69 November 20, 2016
 Get the Dog In A Bathtubmug.
Get the Dog In A Bathtubmug. by Vagio January 15, 2017
 Get the Dog In A Bathtubmug.
Get the Dog In A Bathtubmug. by Five Seven February 7, 2008
 Get the Dogs in a bathtubmug.
Get the Dogs in a bathtubmug. by maD iLL soN May 20, 2003
 Get the dog in the bathtubmug.
Get the dog in the bathtubmug. Trying to put your penis and balls into a woman's vagina.  Trying to keep them in is like trying to keep a dog in a bathtub.
by Ryan the Man May 21, 2006
 Get the dog in the bathtubmug.
Get the dog in the bathtubmug. The FULL insertion of one or more testicles into a woman's butthole...the term was coined based of its level of difficulty in both pain and practicality, i.e. getting a dog in a bathtub. Norf
by Thomas Funk, Jeffinsteiner Platz June 24, 2008
 Get the Dog in a Bathtubmug.
Get the Dog in a Bathtubmug.