Traded on the black market. / Contraband, bootleg or smuggled.

(intransitive) To participate in a black market. / (transitive) To sell in a black market.

A penalty card issued by an official in several sports for infractions. / (fencing) The most severe of penalties, which results in the fencer being expelled from the match.

trade that is in violation of restrictions, rationing, or price controls / the people who engage in such trade (considered as a group), or that sector of the economy

(idiomatic) A situation in which somebody comments on or accuses someone else of a fault which the accuser shares.

(idiomatic) Explicitly, in writing, clearly and without doubt or misunderstanding, without any grey areas. / (literally) Using shades of gray rather than color.

a blanket used under the saddle of a horse

(film) To end a film or a scene of a film by causing the image to be gradually dimmed into black.

(film) An ending of this kind.

(curling) An end in which no stones are touching the house, and thus no points are scored.