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A rare medical conditon during which a man ejaculates a fine, lukewarm mist as opposed to seamen during masturbation. It permiates the surrounding air and creates a punget odor that can reach up to 300 meters. Although this condtion is prominent in persons of Indian descent, only .00045% of males are born with Penis Gas Syndrome.
Steve: (profusely masturbating)

Arjun: Steve are you jackin' it?

Steve: No dude im just- *grunts* AHHHHH...

Steve: What the fuck I just jizzed mist! I must have Penis Gas Syndrome!!

Arjun: Ah, the wafting smell of penis gas!
by Steven Danger July 22, 2010