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8.
A situation where your female partner's ass is blocked with shit.
Oh Honey, i cant let your give me anal, I'm currently Backpacking.
by Sando75 October 23, 2008
 
9.
An art of robbery..When one goes into anothers backpack/bookbag and steals from them any thing valuble whil there walking

yo i cant belive you were trying to backpack me

hey i think we shold go backpacking that kid..hes got an ipod
by Jimmy crack Corn September 22, 2006
 
10.
A sexual position in which partner A is draped over parner B's shoulders and down their back (like a backpack), whereafter partner A proceeds to administer oral-anal sex (a salad tossing).
Want to have some backpacking this weekend?
by theVoid620 March 30, 2004