Any Friday observed as a day in which guys and girls are voluntarily free to fondle each other. Hence the name. Typically exercised as shouting "Free Fondle Friday!" before groping your selected target.
-Girls' breasts and asses are free game
-Guys' junk and asses are free game
-Anyone is free to decline
Dude: "Man that chick has huge tits, I can't wait until Free Fondle Friday!"
Chick 1: "I hear that guy is seriously packing!"
Chick 2: "I bet we'll find out this Friday!"