hamster balling Share definition Flag Hamster Balling is when one crawls up into a woman's vagina and rolls around. The woman normally dies. Man, my mom just walked in on me and my girlfriend when we were hamster balling. hamster balling by Ross R. R. December 14, 2008 0 0 Get merch Get the hamster balling mug. Buy Now — $32.95 See more merch