Verb. meaning to Walk Tall and Smile Big much like the Ghostbuster's Stay Puft Marshmallow man! A way of encouraging others to be positive about a bad situation.
Dude! I know your girl left you, but you have to stay puft, and move on!
The act of filling a woman's vagina with marshmallows. Then proceeding to fuck her until they get all melted and gooey, pulling it out and having her suck and/or lick it clean. This is similar to the melted Stay Puft marshmallow man at the end of Ghostbusters, just imagine the dick as the proton gun.
Dude Uno: I did the most awesome thing last night with my girlfriend!
Dude Two: Whats that?
Dude Uno: I gave her the Stay Puft Meltdown!
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."