feed someone a line
Also, feed someone lines. Cue an actor with his or her next line (or lines), or tell someone what to say, as in Some contestants become tongue-tied, so someone has to feed them a line, or Eric still has trouble learning a part; he needs someone to feed him his lines.
Also, hand someone a line. Lead someone on, deceive with glib or exaggerated talk. For example, He really fed them a line about his important new position, or Don't hand me a line—I know exactly how much you paid for it. [Early 1900s]
Words nearby feed someone a line
feeble-minded,
feed,
feed a cold; starve a fever,
feed bag,
feed one's face,
feed someone a line,
feed the kitty,
feed-in tariff,
feedback,
feedback inhibition,
feedback loop