When you have cum in your vag and you clench your legs to hold it in, while waddling to the bathroom.
Guy *cums in girl's vag*
Girl *cum waddles to bathroom*
Guy: "Why are you walking funny?"
Girl: "I'm doing the cum waddle cause I don't wanna leak cum on the floor!"
by GeoNips October 4, 2014
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the walk you do when you bust a nut and your walking to the bathroom
guy 1 :"dude i just did the cum waddle"

guy 2 :"yeah nice"
by Eggsack March 23, 2020
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