[oftenR-] to denounce (a person or group) as being communist, esp. with little or no evidence
Origin of redbaitfrom red, adjective + bait, transitive verb
transitive verbred·bait·ed, red·bait·ing, red·baits
To accuse, denounce, or attack (a person, for example) as a Communist or a Communist sympathizer.
(third-person singular simple present redbaits, present participle redbaiting, simple past and past participle redbaited)