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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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