Top Definition
The act of pulling one's balls out and jamming them into someone's face. Along the same principal as a cock slap, but for those with larger balls than their penis.
Janey kept calling Todd names, so Todd ball jammed her and she shut the fuck up.
by Bramble July 12, 2004
1 more definition
A human event that induces the emotional experience of being a ball and being jammed in a machine.
"Balljam! As it turns out, we are lost."

"Balljam! I forgot we had plans tonight, so I'm actually..."
by elaszcz January 05, 2010

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