Tubsiwubsi Share definition Flag grotesque fat kid. normally under the age of 10variations: Tubby-kins, tubby, or tubster. "any fat child should be called tubsiwubsi" Tubsiwubsi by Tubsiwubsi April 25, 2010 0 0 Get merch Get the Tubsiwubsi mug. Buy Now — $32.95 See more merch
