bathtub jesus 

Decorative lawn ornament, popular through much of New england, where an old cast-iron bathtub is buried standing up, halfway into the ground, and a statue of Jesus is placed inside. Frequently seen near or with a lawn ball. Associated with white trash.

I saw a great bathtub jesus in Pawtucket last week.

bathtub jesus by bkdouble October 6, 2006

Bathtub Sink Effect 

Those times when you use your bathtub to heat your sink. A lot of times when one washes their hands at the sink and turns the water on hot, nothing but cold water comes out of the faucet. By letting the water in the bathtub run for about 10-15 seconds, the water heats up. Then you turn off the water in the bathtub, run your water on hot at the sink, and in a couple of seconds, you have hot water running at the sink.

Normally when the Bathtub Sink Effect is not done, you can run the sink water for minutes and get nothing but cold water even though you have it on hot.

Bathtub Sink Effect by Dancing with Fire December 14, 2010

bathtub warrior 

usually a marine cadet or sea cadet who thinks they're better than everyone else and thinks that they're as good as an actual soldier when in fact they actually just splash around in the water,fall off boats and fail to dry capsize.
basically the equivalent to a puddle pirate but more commando and less sea cadet...

army cadet next to a river: oh look at that bathtub warrior, that twat cant even swim!

bathtub warrior by aircadet101 September 8, 2019

bathtub gin 

liquor made in one's own home (because during prohibition they filled the favored bottles at the bathtub instead of the kitchen sink, can be applied to more than gin)

I wouldn't be caught dead drinking that bathtub gin.

bathtub gin by The Return of Light Joker February 16, 2009

bathtub crank 

A street term for poor quality methamphetamine; methamphetamine produced in a bathtub.

Bathtub crank is commonly made in a bathtub.

bathtub crank by moogirlos December 12, 2015

bathtub smoothie 

A sex act involving 2 liters of semen and a bag of strawberries mixed together in a bathtub.

A vicious beating at a tournament throughout multiple rounds

That kid got a bathtub smoothie 6 rounds in a row.

I took my girl back to my place for a bathtub smoothie.

bathtub smoothie by RamahTrip November 11, 2013

bathtub toast

Generally, major disappointment in oneself. Specifically, the act of killing oneself in one's bathtub through electric waves. Abbreviated as "btt".

My girlfriend dumped me. Bathtub toast.

bathtub toast by eliaszjm December 20, 2016