御猪口[ochoko] small cup
片口鰯[katakuchiiwashi] Japanese anchovy (Engraulis japonica)
白口[shiroguchi] white croaker (Pennahia argentata)
悪たれ口[akutareguchi] abuse
悪口雑言[akkouzougon] all kinds of malicious gossip

異口同音[ikudouon] in concert
異口同音に[ikudouonni] in one voice
ひと口[hitokuchi] mouthful
一口商い[hitokuchiakinai] an immediate definite deal
一口同音[ikkudouon] reading in unison

お生憎様[oainikusama] that's too bad (ironical)
愛憎併存[aizouheison] ambivalence
見憎い[minikui] ugly
小憎らしい[konikurashii] provoking
合憎[ainiku] unfortunately

憎い[nikui] hateful
憎しみ[nikushimi] hatred
憎まれっ子[nikumarekko] bad boy
憎まれ口[nikumareguchi] abusive language
憎まれ役[nikumareyaku] thankless role