碍口

zhè shì r yǒu diǎn ài kǒu bù hǎo shuō

这事儿有点碍口，不好说。

It's rather embarrassing and I don't know how to bring it up.

qiú rén de shì shuō chu lai yǒu diǎn r ài kǒu

求人的事，说出来有点儿碍口。

It's a little inconvenient to ask for someone.

jiè qián de shì shuō qǐ lai hěn ài kǒu

借钱的事，说起来很碍口。

Borrowing money is always an embarrassing thing to do.