Often abbreviated to P.S, this originates from the strong resemblence of a males small penis to a party or cocktail sausage. The wrinkly nature of the foreskin which covers the majority of a 2"flacid penis shares a similar texture and appearance to that of the small sausage.
The girl who sleeps with, or in other words, gets "passed around" your entire group of friends like a blunt at a party.
John: Yo, bro, I banged Michelle after that party last night.
Hank: Dude, I banged Michelle right before the party last night.
John: Wow! She's like the party blunt, everyone gets to hit that.
Hank: Hit it twice and pass it on.
An apparently growing fad in which a group of people gets together and pool together a large tub of medications and/or street drugs intended for simultanious consumption. The mix consists of, (but is not limited to), various perscription Rx, Over-the-counter OTC, and street drugs (usually in a pill or blotter form).
"Yo dude, put some more dxm in the party mix, too much fuckin valium and adderall in there right now."
"Who's got the MDMA? our party mix is looking a little off color tonight."
"Damn, dave took a handfull of lastnights party mix, washed it down with a beer and in 5 minutes he was on the ground having a seizure."