When the penis is soft, the dick collar is the loose skin that bunches up around the base of the head, or neck, of the penis.
Thus creating a collar-like appearance around the base of the head.
Man, I got my dick collar caught in my zipper! It hurt like a mofo!
The act of fucking someone in the ass, and upon pulling your penis out, discovering that there is a collard green wrapped around your dick.
I met this chick that was obsessed with anal. It was the only way she could get off. In fact, it went pretty well until I pulled out one time and had a collard green dick.
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.
"Base we've got some square groupers floating outside of Miami harbor."