Top definition
Technical term realting to devices such as scanners attached to computers.
TWAIN stands for
Technology Without An Interesting Name.
No shit.
And now we'll just grab that picture from the mag via your twain scanner.
by w00x January 08, 2004
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2
A very furry vagina. A vagina so hairy that is vaguely resembles Mark Twain's hair-do.
Birdie went down to Jenny's to get some twain.

by Bunny_of_the_Scots May 05, 2008
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The vengeful act of crapping on a lover's chest while they sleep.

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3
to cause physical harm to ones self while masterbating.
I really twained my hamstring yesterday.
by sammy deisel July 12, 2010
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4
of taiwan, tawny. is a legend, wise, knowledgable, omni present.
-that guy twain has knowlegde,lets go get mashup
- yer, mashup!! -props!!!
by twain September 16, 2005
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The vengeful act of crapping on a lover's chest while they sleep.

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5
Judy won't leave me alone, shes such a fucking twain.
Stop being such a twain.
Bonnie-"Mommy! Suzy called me a twain!!". Mom- " You are a twain"
by Sarahahaha! October 10, 2005
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6
The length of your buttcrack spanning from your asshole to the small of your back.
My Twain was chaffed because my thong underwear was too small.
by Thomas M. Pace July 23, 2008
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7
An insult used to insinuate that an opinion does not matter or hold credence.

The term is derived from the phrase "my two cents" in an attempt to use sarcasm and irony to convey the lack of personal interest the speaker of the word holds for another's opinion.
"Nobody respects your twain garbage"

"Thank you for sharing your twain *sarcasm*, now I am going to go and do something that is useful"

"Keep your twain to yourself"
by scraz51_again September 09, 2009
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