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1.
To kiss someone on the nose and then blow into their nostrils. Coined by T-Rex and Utahraptor from Dinosaur Comics.
I thought Becca wanted to make out, but it was just a ploy so she could jennif me.

Jenny is such a jennifer.
by Bear Claw Bill September 09, 2007
 
2.
v., transitive: to kiss someone in the nose, then blow into their nostrils.
"Hey, couple making out across the street! She jennifed you, dude!" - Ryan North, Dinosaur Comics
by J. Jennifer September 04, 2007