noun

1. cockroach
2. Slang the butt of a marijuana cigarette

noun pl. roach or roaches roach′es

1. either of two N European freshwater cyprinoid fishes (genus Rutilus)
2. any of various similar American fishes, as the California minnow (Hesperoleucus symmetricus)

Etymology: ME roche < OFr < Gmc, as in MLowG roche, OE ruhha, roach, akin to OE ruh, rough: prob. because of the rough skin

transitive verb

1. ☆ to brush (a person's hair) so that it arches over into a roll
2. ☆ to cut (a horse's mane) so that it stands up

Etymology: < ?

noun

1. ☆ hair or a mane brushed or cut by roaching
2. the curved edge of a sail