Blackjack

Etymology
From the card game blackjack, also called, which is one of two pronunciations of 's name (the other being "to anyone").

Noun

 * 1)  A fan of the South Korean girl group.
 * 2) * 2014, Julie Carlson, "2NE1 Comeback", Hallyu Magazine, Issue #11, Winter 2014, page 41 (approx.):
 * The queens of K-pop, 2NE1, are gearing up for their world tour in March and Blackjacks could not be more excited!
 * 1) * 2014, Chester Chin, "2NE1 in concert: Sassy and fierce", The Star (Malaysia), 29 May 2014:
 * It’s this sort of brash ethos that resonates with Blackjacks (as 2NE1’s fans are known).
 * 1) * 2014, Lainey, "2NE1 Gives Their All For Malaysia", Campus Plus, Issue 91, July 2014, page 58:
 * Most of these 'Blackjacks' have waited five years since 2NE1's debut to finally see the girls (CL, Bom, Dara, Minzy) perform a full show in Malaysia.

Etymology
From.

Noun

 * 1) blackjack card game