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When a female inserts her nipple inside the tip of the man's penis.
Dude!!! Me and Emily were Nip Tipping

Nice Brahhh
by SeebeySeebs August 04, 2011
A derogatory racist term for pushing Asian Canadian anglers into the water.

Similar to Cow Tipping except instead of pushing over a sleeping cow; the intention is to push an Asian Fisherman into the water. This is Canadian slang local to Toronto.
Guy 1: Look at those Asians over there eh... Who do they think they are fishing our lake eh? We oughta teach them a lesson.

Guy 2: Let's go nip tipping!
by GeneTheDog August 02, 2012