Top Definition
When a woman is so obese that the fat rolls topple down over the top of her vagina like an avalanche.
Guy #1: "Man, Char has gotten fat."
Guy #2: "No kidding. Before heading in you'd need a condom and a GPS in case of a vagalanche."
by wocka wocka June 29, 2012
multiple vag, getting with a lot of women, an unheard amount of sex,
hey jim that car is so awsome you may cause a vagalanche
by leach's word June 24, 2009
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