This is a sport where people swing their arms with great force while walking in crowded areas and "catch" the person's crotch behind them.
Dave: Hey Mary, how was your morning commute?

Mary: AWESOME! I went crotch catching and caught 3 crotches this morning when walking out of the subway!!!

Dave: Lucky, I only caught one old one. I'm going crotch catching again on my way home.
by Crotch Catcher Inventor August 10, 2010
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When someone drops something, and it falls in their lap. It mostly occurs when the person is sitting. When dropping something while standing, the person will catch the item by pushing it against their crotch in a fast motion to stop it from falling.
During Biology, Mia dropped her pencil. She put her hands down to catch it, only to realize that her crotch caught it instead of her pencil falling the the floor.

Steve: "Crotch Catch!"
Mia: "Stfu Steve."
by Drumstuck August 8, 2009
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