Synonyms to sell out

apostatize, apostacize, betray, bolt, break away, change sides, defect, degenerate, desert, fall away, fall off, go over, let down, pull out, rat, renegade, renege, renounce, repudiate, run out on, secede, switch, switch over, tergiversate, turn, turn against, turn cloak, turn traitor, bear witness against, blab, blow the whistle, fink, inform against, inform on, narc, peach, snitch, snitch on, squeal, stool, tattle, tell on, testify against, turn informer, babble, back-fence gossip, be indiscreet, be unguarded, betray a confidence, blabber, blather, blether, blurt, blurt out, buzz, chatter, chitchat, clatter, cry, divulge, give away, gossip, gossiping, gossipmongering, gossipry, grapevine, groundless rumor, hearsay, idle talk, inform, jabber, leak, let drop, let fall, let slip, natter, newsmongering, piece of gossip, prate, prattle, retail gossip, reveal, reveal a secret, rumble, rumor, scuttlebutt, sing, spill, spill the beans