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1.
n.
The sexual act of pinching a female's taint with thumb and fingers inserted in the anus and vagina respectively, to reposition the receiver.
The porn showed the women six-packing eachother to get a better angle position for the camera.
by SirSexy January 03, 2012
 
2.
Laughing so hard that you feel like you are growing six pack abs.
Damn dude, when milk came out of his nose i started sixpacking!
by pandasgonutsforyou September 18, 2011