the act of stretching a girls ribs out from the inside while having intercourse often causing great discomfort while simultaneously giving great pleasure. This is only possible with a Morgajam sized man hammer
Come here James, throw that rib spreader in these guts till you make em' crack you thick whistle uterus bruiser!
by YodaznVa August 21, 2008
Get the Rib Spreadermug.