口舌

dispute or misunderstanding caused by gossip / to talk sb round

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

used in 喇舌[la3 ji1] to transcribe the Taiwanese word for "tongue"

tongue

incessant complaining

to boast of one's quarrels to others (idiom)

to argue needlessly / to waste time explaining