ABSTRACT

X noun 1 MDMA, the recreational drug best known as ecstasy. Generally an abbreviated "ecstasy", specifically used of any MDMA tablet stamped with a symbol that may be read as an X. US, 1988. 2 marijuana UK, 2003. 3 in blackjack, any card worth ten points. A Roman numeral used by card counters. US, 1991. 4 a cross-breed of a dog CANADA, 1997. 5 a grip on all illegal gambling US, 1974. 6 an empty railway wagon US, 1946. ► put the X on to mark for murder US, 1973. ► the X in the circus or carnival, exclusive rights for an item or concession US, 1980