1 definition by IMW

Top Definition
When a person (typically a girl) sticks her thumb up man's butthole and flips around his balls between her fingers.
"Ryan just told me that Sarah's flopsy giving abilities are unmatched!
#butthole pleasures #flopsy #sex #ass #butt #finger #fun #balls #testicles
作者 IMW 2008年4月05日
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