A game usually enjoyed by extremely perverted college kids, in which a lubricated pickle is inserted into the player's butt-hole and they are told to race down a football field without dropping the pickle. If the slippery pickle happens to fall out of the player's butt-hole, the player has to take a bite of it as punishment for dropping the pickle.
A loser who mooches off of others until his/her times runs out. See also "couch surfer". Butt pickers lack any sort of motivation. Some are sociopaths, true users, but most are lazy indolent types who seek out helping hands to screw over. Get a life, butt pickers.
Although he was a talented carpenter, Johnny was too lazy to find a steady job, and instead chose to lounge around as a butt picker, watching the TV and eating the food of whoever bought his sorry stories.