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2.
what paul nguyen's mouth looks like after doing a job well done.
paul came home from work very jizzmouthed from a long days work
by jizzmaster December 12, 2003
 
1.
Whilst masterbating, glancing down at your penis at the exact wrong moment to recieve a mouth full of jizz.
Bob- "Bro, i was just spankin' the monkey and i decided to check up on the little guy when all of a sudden BOOM i got jizzmouthed."

Innocent bystander- "To much information"
by McDiddles May 31, 2010