Post-Surf Nasal Drip. The sensation of water coming out of one's nose while bending over beginning 20-30 minutes after a session of heavy surfing.
Guy 1: "Brah! i leaned over to kiss my girlfriend after surfing, and i PSND'd all over her shirt!"

Guy 2: "Gnarly bro!"
by alexthemnky June 27, 2011
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