Some of them went so far as to send warships to cruise along the riffian coast.
"melodic phrase in jazz," 1935 (but said to have been used by musicians since c.1917), of uncertain origin, perhaps a shortened form of riffle, or altered from refrain. The verb is attested from 1942, from the noun. Also in extended use. Related: Riffed; riffing.
[origin unknown; perhaps echoic; perhaps fr refrain; perhaps fr riffle or ripple in the sense of ''try, shot, crack'']
A refrigerator car; reefer1 (1950s+ Railroad)