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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.
speedbag by Ljo93 August 6, 2008
v.
To repeatedly hit the forehead of the woman who is sucking on your balls as you masturbate, akin to hitting a speedbag with one hand.
I was speedbaggin' Becky and jizzed in her hair.
speedbag by Jizzones October 15, 2006
Last night I tried to Abraham Lincoln my girlfriend and she speedbagged me!
Speedbag by DirtyNitro February 14, 2015
the process of punching a woman's bare breast quickly and repeatedly, just as rocky balboa would go at it with a punching bag.
weeks's mom likes it when i speedbag her.
speedbag by chikochan April 28, 2005
Someone who gets their ass beat real bad in a fight, or loses every fight they are in.
1)Galvan, your a fucking speedbag!
2)You want to fight me? Whata joke, I will speedbag you.
Speedbag by B Roz December 8, 2004
To punch one's testicles repeatedly like a boxer training for a fight. Participant may use both hands, one hand, or a combination of each.
That dude is such a douche I want to speedbag his nut-sack.
Speedbag by BigDaddyC6969 October 5, 2020