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thundy is slang for autism, used primarily in the anime community
hey look at that guy he's a really thundy
by not thundy February 05, 2018
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Term used to describe the underwear on a really fat chick
Whoa, check out the thundies on that fattie. I didn't know they came in whale size ....
by helmut007 June 13, 2007
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