When a girl is giving head on her knees whilst the man stands, and she punches the scrotum repeatedly like a boxer punching a speed bag.
Hilary: So last night me and Ryan went out to dinner...
Friend: How was it?
Hilary: That asshole was staring at the waitress' ass the whole time, but i played it cool. So when we got home he thought he was just getting a BJ, but when i got on my knees I gave 'em a good old fashioned speedbagging.
When instead of deepthroating you just rapidly jab around the back of a girls tonsils. Flicking them back and forth like a boxer with a speedbag.
She wouldn't let me go balls deep so I had to go speedbagging around in there. Deepthroat
When a woman is on her knees, sitting back on her feet giving a man standing infront of her a handjob.
As I walked in the door, I noticed something Peculiar, HOLY SHIT, my mom is speedbagging her B/F!!!!
The act of beating your woman's pussy up like you're in a wrestling ring.
lick_my_double_dz: I want my man to beat my twat like he was in a wrestling ring but not make it bleed..I want some speedbagging on my vagina
The acted of getting kicked/punched in the nuts in a manner that leaves you feeling like someone is using your nuts as a speedbag.
Damn, I just got speedbagged while wrestling with the kids!
A nutsack with an extreme amount of dangle in its angle. Usually used to describe such during periods of warm weather when someone decides to go commando.
If i accidentally sit on my speedbag, it makes me throw up in my mouth a little.
To rapidly bash one's testicles against a girl's vagina or ass when you're fucking her quickly.
I speedbagged my girlfriend so hard last night I bruised her ass.