Top definition
A.k.a. chad or perineum. The region between genitals and arsehole.

Taint gets its name from the sentence: It ain't pussy, it ain't arse.

i.e. 'taint pussy, 'taint arse.
Q: What on earth is a taint?
A: The perineum.
Q: Huh?
A: The chad!
via giphy
by Chane. February 01, 2020
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
The scientifically/anatomically correct word for taint is perineum.
by Ace Ball October 18, 2018
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5
a slang used to refer to the perineum, the part of the body between the anus and genital organs, overlying the pubococcygeal muscle. This term supposedly originates from the fact that, "'Tain't your balls, and 'tain't your ass," "'tain't" being a contraction of "it" and "ain't", in this case, meaning "it is not."
SON: "Hey Dad, how come they call it a taint?"

FATHER: "Well son, 'cause 'tain't your balls, and 'tain't your ass."

SON: "Oh."
by HyaenusDominae August 20, 2010
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6
The region of skin between the genitals and the anus; often accompanied by dingleberries.
Although he can't yet grow any facial hair, Mike can still grow a two-foot Santa beard off his taint.
by ???????????????????????? October 12, 2007
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