gentlemans gentlemen (noun) valet: manservant
Sinonime: abandon, backstab, be disloyal, be unfaithful,
betray, break promise, commit treason, cross, deceive, double-cross, doublecross, finger*, go back on, inform on, play Judas, sell down the river, sell down the river, sell out, trick, turn in, turn informer, turn traitor