A person who has excessive back fat to the point where it looks as if they are conceling a back pack in their shirt.
by the one they call wonka March 04, 2009
Will: Let`s head over into that patch of brambles! and take off your shirt and pants, we`re going bare-backing-back-packing.
Barry: I`ll bring the flashlight!
Barry: I`ll bring the flashlight!
by rangourthaman July 06, 2009