What is Dropping The Thumb?
1.
When you are having sex with a girl doggy style you use your thumb to either rub her asshole or stick it in there like you would on a bowling ball.
While Brian was banging the girl from behind, her ass was postioned perfectly and so he proceeded with dropping the thumb.
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Random Words:
1.
Artificial limbs that attach to the shoulders of an armless person, that point with index fingers towards the anus while in a doggy-styl..
