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The sexual act of pressing down just below a person's navel while fucking (usually from behind but any way works) them which increases pressure to their g-spot or prostate depending on which they have, as well as the dick inside them. If done properly it may result in a more intense orgasm for the receiving person.
"Glen's the best lover I've ever had. He always uses button crushing as a finishing move!"
by CreativeWithaD June 18, 2018
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