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A form of english street slang mostly used by those of a TWEEKED out state. Could also be used to describe the sudden jerky movements a person displays after a few days up on Crystal Meth.
"Dude Marc must be on one big time he wasn't even able to control his body flailanguage."
said Herman

Gina and Marie are obviously high as hell because they are talking over so much I can't even under stand what flailanguage is coming out of their mouths.
by Wee Perras November 06, 2014
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Jul 25 Word of the Day
A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy
My bf and I used to really get it on together, but now it's just the occasional cumpadre wank
by Gladys Pipps-Knightley May 14, 2007
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