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1.
The smell that emanates from the sack and or grundle area of anyone, particularly hobo's. Turds would be like roses compared to this pungent dry sweaty sack smell. The stench is so strong that you dryheave standing over the toilet. Hobo Sack stains porcelain with its tremendous odor.
Imagine a hobo riding the rail across the country, running from train to train to catch connections, sleeping in steamy hot, box-cars taking part in all types of un-savory hobo orgies all whilst not showering or considering washing the sack area...for months.

You may walk into a public bathroom and get hit with the smell. Not turdy, straight sack smell, Hobo Sack smell.
by Girlweener July 30, 2009
 
2.
it basically means that you are a hoe living as a hobo and well you live in a sack. its simple
Look at that hoe, she's probably a hobosack.
by cupcake417 July 29, 2008
 
3.
A bag carryed around by bums and hobos (mostly hobos) they are usually full of random junk that the hobos say are "priceless" or "used by (insert famous persons name here)" the hobo sacks are usually plastic bags

Also it can just be a backpack filled with random junk that is not needed. Dose not have to be carried by a hobo. It can be a broken up backpack carried by a middle class person
1. That hobo/bum tryed to sell me some junk from his hobo sack

2. Why did you bring that hobo sack! We are just going camping!!!

3. That is to discusting to be a backpack....oh! DUH its a hobo sack!
by LAN_Wee October 04, 2005
 
4.
A bag carryed around by bums and hobos (mostly hobos) they are usually full of random junk that the hobos say are "priceless" or "used by (insert famous persons name here)" the hobo sacks are usually plastic bags

Also it can just be a backpack filled with random junk that is not needed. Dose not have to be carried by a hobo. It can be a broken up backpack carried by a middle class person
1. That hobo/bum tryed to sell me some junk from his hobo sack

2. Why did you bring that hobo sack! We are just going camping!!!

3. That is to discusting to be a backpack....oh! DUH its a hobo sack!
by LAN_Wee October 04, 2005