Definitions by Gi.

Lizard 

A person who when making out sticks his/her tongue in and out in a lizard like way. They lizard kiss and it is not pleasant.

Anna: "So, I heard you hooked up with Jack."
Lucy: "Please don't remind me, it was horrible!"
Anna: "What happened?"
Lucy: "He is such a lizard!"

Lizard by Gi. January 5, 2011