Meaning of zuǐ ba:
zuǐ ba
嘴巴
Noun
mouth (CL:張|张[zhang1]); slap in the face (CL:個|个[ge4])
Tā de zuǐ ba hěn dà.
他的嘴巴很大。
His mouth is very big.
Tā méiyǒu xiǎngdào huì bèi tā dǎle yī zuǐba.
他没有想到会被她打了一嘴巴。
He didn't expect to get slapped in the face by her.