bathtub mermaid 

A way to describe someone who is so obsessed with something that if that "something" is gone, then they'd be helpless without it; As if a mermaid were in a bathtub and someone pulled the plug.

They're such a bathtub mermaid, obsessing over a stupid thing like that.

bathtub mermaid by AzureGummy March 28, 2017

bathtubbin' 

Hanging out with your friends in a bathtub.

We were going bathtubbin' last night.

bathtubbin' by Haruka Hoshino December 4, 2009

Bathtub Goblin 

A particularly scary creature living in your tub. Originated from a fearsome picture of Whoopi Goldberg.

"oh God! I'm not taking a bath NOW."
"What is it?"
*points* "It's the Bathtub Goblin...AGAIN."

Bathtub Goblin by U.Steve April 4, 2009

Dog In A Bathtub 

Not anything sexual... just a dog in a bath tub

"yesterday was Christmas, and I woke up to a fucking dog in a bathtub! Thanks mom!"

Dog In A Bathtub by Autumns Definitions November 19, 2016

bathtub bong 

The item of marijuana paraphernalia that is evolved when one is so chronic that one brings ones gravity bong into the bath with oneself.

Usually in the form of a 2-liter soda bottle with the bottom cut off, the bathtub bong is always the piece in a marijuana smoker's collection that he has had the most fond memories with.

Because you can't call yourself a pothead if you haven't passed out in a bath full of warm bong water.

Stoner: "Yo, Brosephus Rex, where's my bathtub bong?"
Roommate of Said Stoner: "I was using it in the sink like a normal person, you fuckin' pothead."

bathtub bong by CocaineMorman420 March 19, 2009

Cats in the bathtub 

When you are trying to stuff your nuts into a woman's fart pipe and as soon as you cram one in, the other nut pops out. Leaving you with only one nut in her asshole, but never two. - Very similar to trying to get two or more cats in a bathtub, one always escapes when trying to get the other in.

The only man to accomplish this feat is the very famous "aww nigga, nuts in the ass dick in da pussy" porn actor. Who overachieved the feat by keeping both nuts in a females asshole WHILE stuffing his giant dong in her vagina. Making us all feel inferior.

Man, I was trying to stuff my nutsack into Bertha's asshole, but all I got was cats in the bathtub

Cats in the bathtub by TittyfaceJenkins July 5, 2016

ryan was kneeling in the bathtub

the first line of the milk fic.
if you mention it, there's two kinds of people;
the person who says "huh?" and the person who goes "NOpENOpenopenope SO SH OOK"

Phil Lester: Ryan was kneeling in the bathtub --
Dan Howell: NO NO N O NOPE NOepnope sT OP

ryan was kneeling in the bathtub by phannietrash January 19, 2017