joker

the joker in the pack

someone or something that could change a situation in a way that you do not expect The independent candidate is the joker in the pack in this election.

joker

n. a man; a guy. Who was that joker I saw you with last night?

Common Names:

Name	Pronounced	Usage
Teunis	TUU-nis	Dutch
Kamal (1)	-	Arabic
Arnauld	['a:rnəu]
Neja	-	Slovene
Oskar	AWS-kahr (German, Polish)	Swedish, Norwegian, Danish, German, Polish
Zemfira	-	Tatar, Bashkir, Azerbaijani, Literature