The sexual act of placing both penis and full scrotum inside the anus of your partner. Said act is aptly titled as pertaining to the complication factor of performing the act of keeping a Dog in a bathtub.

Dude, that girl is ill. She let me give her a dog in a bathtub!

dog in a bathtub by The Broiler July 16, 2008

Dog in a Bathtub

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

"I gave that bitch a dog in a bathtub"

Dog in a Bathtub by CharlesVA August 5, 2006

dog in a bathtub

when you lube up someone's anus and squeeze your balls inside. then try to keep them from jumping out, like a dog in a bathtub.

Dude!Sandy was walking real funny this morning, what'd you do to her bro?!?!?!?

well man i fucked her, sucked her tities then broke out the astroglide and gave her that dog in a bathtub treatment!

dog in a bathtub by fuzzyknubbles October 3, 2008

Dog In A Bathtub

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

Dog In A Bathtub by demon slayer 69 November 20, 2016

Dog In A Bathtub

Trying to fit your entire hunk of junk into her bootyhole.

"Damn I can't achieve a dog in a bathtub with jesse."

Dog In A Bathtub by Vagio January 15, 2017

Dog in a Bathtub

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

"I had some serious nerve damage after that "Dog in a Bathtub!" - Norf

Dog in a Bathtub by Thomas Funk, Jeffinsteiner Platz June 24, 2008