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Bathtub Motor

A poorly engineered thing; particularly one that is over-complicated, with excess and unnecessary parts. The term comes from a Heinlein quote/novel.

"If one is building an electric motor, one uses only the parts needed to do so. You would not, for instance, add a bathtub simply because one was available."
"Why does this thing even have one of those?"
"It's a bathtub motor."
by TicklishHoneyBee June 2, 2023
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Bathtub Milkshake

When You Drink Bath Water (Intentionally or Unintentionally)
by PuppyDogs&Weezer March 22, 2023
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bathtub circus

When you're taking a bath and decide to pump one out in the tub.
"Man, last night was so relaxing. I had a bathtub circus before bed.
by Courtesity June 14, 2024
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Skibidi bathtub

Skibidi bathtub is here Skibidi shower is coming soon
by Skibidi urinal syndrome February 19, 2024
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Bathtub turtle

When your stomach and penis float to the surface of the water in the tub, resembling a sea turtle popping its head up.
I have to remember to knock next time before I see another bathtub turtle.
by Kurtjohnson February 24, 2024
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Bathtub in a Lobster

Not unlike "The Lobster", in that one is performing "The Shocker" with two different women at the same time, only with three people.

This sex act is performed by three women with the hands of each of the other two performing the "The Shocker" simultaneously with in them.

Thumb wrestling around the clit, six fingers in ones vagina and two in ones ass, everyones hands are busy.
Last time we were at a girl pile we orgasmed super hard from the "Bathtub in a Lobster", I knew it was true love as we held hands inside of our other lover, but I lost my ring for a while.
by D'jisorderly March 31, 2024
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