A little bump of whatever respective substance one may be doing. Usually the size of the body of a daddy long legs.
by raginramborondo December 23, 2012
Get the spider bumpmug. 1. When two girls intersect legs and rub or 'bump' their lady parts in a sexual motion.
2. When two girls rub and grind their dripping wet pussies together.
2. When two girls rub and grind their dripping wet pussies together.
by yumtown March 13, 2009
Get the Spider bumpmug.