look up any word, like half chub:
 
5.
To quite literally, shovel shit down someones throat, whether they like it or not. They dont stand a chance if you're a dirt bagger, they wont stop till you've either A. Passed out from the smell, or B. Urinated yourself from the fear of what they might do. Dirtbagging occasionally includes a spade and hand cuffs, though it doesnt have to.
Hey dude, what are you doin with that..
OH MY GO-MMPF
by newbornveteran December 03, 2004
 
1.
Being at a certain point of desperation where you'll reach over to another table and help yourself to the unfinished drink of someone who's left the lounge. Common practice of stressed-out folks about to head into a sales call, going through divorce, or just want to put the "seed" in "seedy", and need that extra drink. Usually practiced after one has had a couple of drinks (to, ya know, establish that you "belong" in the establishment), and desperately reaches for some abandoned beverage in a knee-jerk, fuck-all gesture.
"Dude--drinking that beer that guy left is pretty dirtbag."

"You wanna go get drinks later--maybe a bit of dirtbagging?"
by Skip Bloody Rotter June 10, 2009
 
2.
Prior to Teabagging, the person performing the teabagging pulls his scrotum between his legs and wipes it across his anus.
Pers1: I'm so gonna teabag Mike!
Pers2: No man, I heard of this thing called dirtbagging on the internet, let me show you how it's done.
by Fineilltrythisone February 03, 2011
 
3.
Dirtbagging. verb. To attend and event or establishment with the general wardrobe, demeanor, attitude and behavior of a typical dirtbag.

Standard dirtbag attire includes: wifebeaters, flannel shirts, old 1980s rock band t-shirts, cut-off jean shorts or ripped pants.
Guy 1: Man, we so dirtbagged that fancy restaurant last night!
Guy 2: Really?
Guy 1: Yeah, everyone was wondering why the fuck we were there. We got super hammered on the the cheapest beer they had, too!
Guy 2: dirtbagging is so awesome.
by Royal_flush13 June 04, 2010
 
4.
Like teabagging, but when the teabagger has feces on his scrote.
Rob has been dirtbagging every passed out guy at the party.
by spizzike June 21, 2012