when somebody cooks up a fresh batch of hot steaming pancakes, coats them thoroughly with a layer of rich golden syrup, and then proceeds to firmly smack them on the exposed butt cheeks of an unsuspecting victim
dude were you flapjacking last night because i got flapjacked so hard that the aunt jemima waxed my butt hair
by dark crystal March 11, 2011
A tandem masturbatory technique in which the participants lock arms at the elbows whilst gripping the shaft of their penises. They then flap elbows like a bird in synchronization to most efficiently share the work of jacking.
I jerked off with my friend, but it wasn't gay because we were flap jacking.
by Kingsbury Brothers February 05, 2010