While having sexual intercouse, the process in which the male acheives maximum penetration resulting in impact to the uterus and surrounding internal organs.
John: "Dude, so how'd it go with the red head last night?"
Jim: "Oh my gosh, dude I had her upside down, balls deep, and hit 'dem guts! And she loved it!"
John: "So dude what about that chick on the other side of the bar?"
Jim: "Ooooh yeah. I'd hit 'dem guts for sure!"