button crushing 

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!"

button crushing by CreativeWithaD June 18, 2018