In sexual activities, "the wildcard" is slang for a girl's urination hole. That's right. The hole she uses to pee.
The Stink, the Pink and the Wildcard!
by CyanideSara March 28, 2008
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A person who is generally unpredictable and has no defined role in a group of friends, and their often reckless and wacky behavior can either benefit or hurt the group depending on the situation.
Mac: Guys, why aren't the breaks working?
Charlie: Because I cut the breaks! Wildcard, bitches! YEEEEEEEEEEEEEEHAWWW!
by ghost of billy mays July 24, 2010
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That one friend who always does the dumbest, scary, and dangerous shit. Their friends don't believe they actually do the dumb shit the first few minutes that they know them, but after that, their loves are changed forever. They are usually that one quiet kid that always sits at the back of the class and nobody knows their name. Don't ever get on the bad side of a Wildcard, they can fuck you up like it's nothing.
"Hey, you see Julie over there, she's such a Wildcard"
by Clumzy Hooman October 24, 2019
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a girl who is unpredictable but fun. The life of the parties but never easy. Everyone wants her, but she cant be held down. You never know what to expect!
She is not like all the other girls, she's different. She's a wildcard.
by whosethatguy? March 19, 2011
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1. In poker, a card which can be assigned any value the cardholder wishes.
2. An factor affecting events in an unknown or unpredictable fashion.
3. In sports, usually a playoff spot available to a team that does not finish first in their division or league.
1. In this hand, sixes are wild.
2. I know what John is going to say, but Vince is always a wildcard.
3. The Cleveland Indians are behind the Yankees, but they still have a chance at the wildcard spot.
by ronald x October 3, 2003
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a wildcard in computer world is eg. *?

a * usually represents zero or more any characters, numbers etc, and a ? means any 1 character, number etc.
they're used to denote many files, or search for something (called glob searching)
*.exe for all exe files in some directory
*hotrod* to search for word hotrod anywhere in a doc
by deice May 28, 2003
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A game played by a group of friends who like drinking too much. An unlimited amount of players can take part but it is usually recommended that under 10 do. Every player has one metaphorical 'wildcard' which they can play at any time they like. They send out their wildcard by text whenever they like giving 2 hours notice with a time, a place, and a fancy dress. Every player has to stop what they're doing, cancel any committments and get to the destination for a night out. You can only use your wilcard once
'this is a wildcard. meet at 8pm, in the park, dressed as clowns with 8 cans of stella artois'
by the pokey pan July 11, 2008
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