An acronym for Let's All Go Naked and Fornicate (or F*ck); originated in the late 1960's and seen on bumperstickers; the general public assumed it referred to some Air Force Base.
L.A.G.N.A.F.(white letters on blue background bumper sticker)
"What are we going to do this weekend? I'll buy a case of beer, let's head for the beach and LAGNAF!"
guy 1) Hey look at those butch chicks
guy 2) those are the band tonight
guy 1) chick band cool
guy 2) nah mate those are just a G.L.A.M band
guy 1) damn where is the deep purple in the world hahaha