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1.
german word for "backpack".
Also used as a slang term for
"testicles"
I have all my stuff in my rucksack.
I am going to kick someone in his rucksack.
by ederkeg May 24, 2004
 
2.
when two guys are fucking one girl in the same hole with there dicks touching.
T and I were giving this woman the ruck sack when T look up and said he likes it when are dicks touch and that we should try another hole to see if it was as good.
by Tim Ru June 15, 2008
 
3.
*A slang term referring to the scrotum (aka : testicles).

*A type of backpack, often worn by military personnel, usually squarish-shaped and used for storing miscellaneous supplies.
"I'll kick that dumbfuck right in the rucksack if I have to! >_< "
-me

"I wanan wear a rucksack to school one day."
-me
by Dave May 19, 2004
 
4.
Scrotal sack or testical bag.
Jim kicked me straight in the rucksack.
by Meat Loaf January 18, 2004
 
5.
when two guys are fucking one girl in the same hole with there dicks touching.
T and I were giving this woman the ruck sack when T look up and said he likes it when are dicks touch and that we should try another hole to see if it was as good.
by Tim Ru June 15, 2008