Help me friends!

Please tell me the original song name. I'm from Russia. Can't find the song for 2 years. If you know ,write the name please


https://vocaroo.com/i/s1QBMBXgZthb

Flatline, it's the flatline
When that beat sound, boy, it's the flatline
Flatline
Flatline, it's the flatline
When I rhyme every time, it's the flatline
Flatline
Flatline, nigga, flatline
It's flatline, it's flatline

Let me hear that flatline
Flatline

Haters always talk shit, talk shit
Oh you mad? You step in what I smell...

Help me friends!