a person who uses drugs so much that they eventually become as useless as the celophane it was sold in
"Get off the riff, you fucking junkbag"
by nurse_cutiepants August 01, 2005
A slang term for the male ball sack ,scrotum sac or also known as the nut sack.
I pissed my wife off yesterday and she kicked me in the junk bag.
by Mastequila September 06, 2011