A Boob Chop

When you are playing a board game and you have to reach far across the table to draw a card or move your piece, the player chops their boob into the edge of the table creating an undesirable effect.

I won my game of Candyland, in spite of a severe boob chop.

I fear that when I reach for my game piece I'm going to get a boob chop (or boob chopped).