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Vomiting in another persons mouth and both parties enjoying it in a sexual manner
Last night me and my girlfreiend were doing some serious Gelping! She loved it
by Jack H Jarvis September 16, 2008
What it's called when you go for a walk, and need to go to the bathroom, so you walk quickly, and in a weird way, the entire 2km home.
Wheres Adrian? I thought he said he'd be right back?

No he was going real fast in the opposite direction, I bet he was gelping.
by kimhush June 15, 2009