3 definitions by BillCosby=Senpai

The Alaskan Fire Dragon, performed with the man riding a moose.
"Hey man, I gave my girl the Alaskan Fire Dragon last night."
"Man, you are bad at this. I gave my girl the Alaskan Dragon Rider last night."
"DAAAAAAAAAMN"
by BillCosby=Senpai October 5, 2016
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Usually a prick named Billy who pretends he has a big dick, when it really is the size of a tic-tac. Can technically be anyone, but it just works better when they're named Billy, m'kay?
Aaron is such a big dick billy, I saw him trying to brag to Christina about his penis size, and I know it's actually tiny because he tried flirting with me by snapping me his dong.
by BillCosby=Senpai September 28, 2016
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A way prepubescent 12 year olds like to represent the act of fapping by slapping their hands against their legs, making a sound similar to fapping.
Man, did you see those pics of the Kardashians? *Leg faps*
(Friend shakes head repeatedly, because he knows his friend didn't actually see any pics)
by BillCosby=Senpai October 6, 2016
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