back pack back
A person who has excessive back fat to the point where it looks as if they are conceling a back pack in their shirt.
"wow I thought that lady had a back pack on but she is just a back pack back".
bare-backing-back-packing
To go on an adventurous trip into the wild with a minimal of tools. Both literary and metaforicly.
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!