The sudden and violent bouncing motion of the breasts when riding in a schoolbus, particularly when seated over the rear wheel.
"I hate chaperoning these school fieldtrips. I wind up with severe titlash on the bus before we even get there."
by MuddyRunnerGirl March 09, 2009
Top Definition
Long, wispy hairs that emerge from nipples.
I was sucking this chick's tits, and she had the longest titlashes.
by Beef Cannon Bill October 13, 2011
(n.) A severe muscle injury caused by turning one's head quickly to view a well-endowed female.
"That jogger chick had such a nice rack, I almost got titlash looking at her!"
by Steve Caruso May 07, 2007
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