In rap, singers often say English is check it? What is this?

In rap, it means "listen and watch", just like saying I'm going to start talking. You should listen carefully and say check it.

For example, if you have something to show others, you can say check it.

Check-out is also the case of living outside the hotel, which corresponds to check-in.

Look, look, observe and listen. . Anyway, anything related to feelings can be done. It depends.

Listening to music: Look at my new music. Look at my music.

Eat: Look at my lunch today. Good food!

Don't say it after reading it.

Touch: Check this sculpture. It feels good.