A Neck Penus is a penis usually found on the neck, it has no purpose but to give others the chancce to make fun of you and say "Dude! what the fuck is that on your neck!?"
"I commited suicide because everyone was making fun of me for having a Neck Penus."
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.