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

手枷[tegase] handcuffs
足枷[ashikase] fetters
首枷[kubikase] pillory
連枷[karazao] flail (for threshing grain)

手枷足枷[tekaseashikase] manacles
口枷[kuchikase] (mouth) gag
枷蚯蚓[kasemimizu] Epimenia verrucosa (mollusc)
子は三界の首枷[kohasangainokubikase] A child is an everlasting responsibility to parents