To stamp an object or person with poone juice. This can be done in secrecy so as to get revenge on someone, or blatantly in the open so that you can see their reaction.
"I poonestamped him in the eye because he was being a complete asshole."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.