(1) Party Jar: A jar that one keeps full of condoms of different varieties for special occasions.

(2) Party Jar: A jar of condoms that's used at parties full of different sized/variety/flavored condoms that people help themselves to.

(3) Party Jar: A large jar of condoms, comprised of condoms of different sizes, flavors, varieties etc.
Matt: "Yo' John, man.. Where 'dem rubbers at?"

John: "Ite man.. over there, my party Jar.."
Matt's Biatch: "Mmmmmhmm"
by JameseyyyyyShaw August 31, 2010
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When a girl invites you to to a salad in a jar party but uses the jar to hold your jizz to one day use against you in a paternity case
"Hey Gerald wanna come to my salad in a jar party?"

"No thank you I don't want to unknowingly become a father"
by Gerald Boy November 23, 2016
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