A small ammount of semen that forms a pool in ones navel. Common practice amongst navel fethishists. One can be made easily by masturbating while laying down.
Dude, this chick I was banging last night had a super sexy belly button. So when I pulled out, I gave her a jizz pool.
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.