Noun. The cheeks of a persons butt which curve in instead of curving out.
That girl had one normalyy ass cheek, but on the other side wasw a basin bun.
by Marc April 3, 2005
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The little piece of cotton cloth in the crotch of women's panties.
Her catch basin was wet.
by Baroen March 29, 2016
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A white uppies neighborhood where white people are commonly lived. It is between the streets of Utica andAve.N They also have a short supply of mexicans who live on Utica
Definition: All my white friends live in Mill Basin but thinking of moving because there is a lot of mexicxan there.
by THe Black KId July 22, 2008
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To take an enormous shit and have it hit the toilet bowl aggressively.
I had a bowl of chili last night, and this morning I slapped the basin. Now somebody needs to fix the toilet.
by jimmy dragon slayer 112 March 31, 2017
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POV: You just searched up the definition of 'UrbanDictionary' and then you went to the definition of 'Shark', then you wanted to see how deep it goes so you searched up 'shawrk', Then you continued to search and looked up 'Badwater Basin'

The Badwater Basin is a Basin in Death Valley America. It is known for being the deepest place in North America
"Wow. I didn't know that Badwater Basin was the lowest point in N America"
"Neither did I, I'm still bored though"
"you know what happens when you're bored?"
" my s̲y̲n̲a̲p̲s̲e̲s̲ ̲w̲e̲a̲k̲e̲n̲"
"..."
"..."
"Nerd"
by Night owl103 March 14, 2023
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Only washing your face and scalp hair by splashing water to make it look like you actually took a bath.
I barely woke up 15min. before the meeting and had a basin bath to make it in time.
by skoss October 14, 2009
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To hit the toilet bowl with an enormous log of poo effectively slapping the basin of the toilet bowl.
Hey! did you slap the basin? It smells like shit in here and the toilet is brown.
by jimmy dragon slayer 112 September 7, 2017
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