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1.
Noun: A sex picnic. The words sex and picnic combined.
Friend : What did you do with Jane today?
Male: Oh, we had a Sexnic. Kinky as shit.
Friend: You lucky bitch! Wish I could get some of that.
by LadyJulie August 09, 2013
 
2.
A picnic where sex is on the menu and orgasms for dessert.
going to the beach, forest, park, lake, ocean for a sexnic with your lover(s)
by ravenkali July 10, 2013