As defined by Sal Vulcano of Tru TV's Impractical Jokers. Being vanbumbled is to see a family member naked.
by thatsmoshgurl August 26, 2017
by Deathadder95 August 26, 2017
by Cru7 August 26, 2017
When you see a family member’s genitalia. A vanbumbler is the one that shows their genitalia to a family member.
by Lukas 000 Jay December 10, 2017