The odor that attaches itself to, and lingers upon a penis, post vaginal intercourse.
Dave didn't bother to shower for the past few days and now he smells like he has a bad case of poon dong.
by Wizard Toast October 03, 2010
Ancient 80 year old Chinese gentleman with a Fu Manchu beard looking to get laid, as played by David Carradine in the movie Crank 2: High Voltage.
That Poon Dong is nasty!
by Ricky Verona April 25, 2011