Background guy in tik toks
哎呦，我的妈
āi yōu wǒ de mā

This is what you heard. It is similar to &quot;oh my goodness&quot; in English, which generally means that things are beyond expectation.

哎呦 = Oh
我的 = my
妈 literally means &quot;mother&quot;, but it could indicate someone or something you respect