Tiplash: when in the act of avoiding a hit to the nuts, you get hit in the dick, the the force of bring hit in the dick carries on to the balls.

Simulating a hit to the nuts
Dude: Hey did that hit your nuts?
You: nah it only hit my dick.

*** a few seconds pass ***
You: ahhh, fuck me
Dude: what I thought it only hit your dick
You: Tiplash!!! *drops to ground*
by Rippercooldude October 24, 2014
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When one helicopter-dick's too hard and experiences wiplash of the dick.
I was trying to impress my girlfriend last night by doing the helicopter dick, and I got a bad case of tiplash.
by jimmyboii January 24, 2013
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