Third-person singular simple present indicative form of run after.

plural of drug run

(colloquial) A trip made, often late at night, to obtain illegal narcotics.

plural of horizontal run

Third-person singular simple present indicative form of run wild

Present participle of run wild.

Third-person singular simple present indicative form of run afoul of

present participle of run afoul of

An extinct genus of hyenas, Chasmaporthetes.

(idiomatic) To perform an action which may result in a loss or failure.