rack sack

The act of ejaculating onto a female's breasts.

Dustin: So dude did you try that new thing with her tits? A rack sack?

Mitch: Oh I totally rack sacked her.

by I_AM_THE_CLIT_COMMANDER June 3, 2007

Sack Rack

When a guy gets kicked, hit, or otherwise sustains pain to the groin area.

Sally kicked Jimmy in the balls. "That was a sack rack".

by jspoke73 March 14, 2011