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1.
1. The odor of a sweaty yambag, reminiscent of a taco that has been sitting at room temperature for several days.
2. Scrotom odor.
3. A sweaty male undercarriage. Musicians, most notably drummers, experience sweaty crotches from playing. Removal of pants often smells like an abandoned taco after a gig
4. Hot balls.
Q: Hey, you want to go to that nudy bar after the gig?

A: I gotta get a shower first. I have some rancid tacobag going.
by JEUNT November 20, 2009
 
2.
The female version of a teabag
Girl1: "im gonna tacobag you you asshole!"
Guy1: "go ahead..i mean please nooooo anything but that..."
by yelsom8 March 16, 2008
 
3.
This is when a broad pulls down her pants and panties (if she's wearing any) and places the lips of her vagina on someone else's face or food or anything really as a joke or for revenge. It's the female version of what dudes do when they "tea-bag" something. Not reccomended when it's "that time of the month" unless the person really deserves it. Taco bagging does not work on guys or other broads that want to fuck you because then they'd enjoy it and that would defeat the purpose.
1. I can't believe that bitch! I am so going to taco bag her face when she falls asleep.

2. My mouth is salty from when Sally taco bagged me after I spit in her face.

3. She is so drunk!!! Let's take turns taco bagging her!
by Alexisr07 May 29, 2009
 
4.
women's underpants
"Ooo my taco bag is riding up and giving me a wedgie!"
by desilu1 March 25, 2010