Contracting of the vaginal walls which results in the ejection of an inserted tampon, along with a fountain of blood.
Jane's boyfriend was going down on her which started her fountaining, shooting her tampon down his throat, choking, and killing him.
by Stephen Smithicus April 14, 2011
A sexual act where one partner urinates into another partner's mouth who has a gaged labret piercing. As the first partner is urinating, it simultaneously flows from the labret piercing.
Kayley cried after a good fountaining by Rich. She sobbed as the backwash burned.
by Rich and Jackie September 24, 2007