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.
"Check out his Party Sausage!"
by Flanners87 May 13, 2009
by hopingx4xhavoc June 30, 2006