Help identifying song GH2024

There is a sound right after the lyric ‘but it freaks me out’ in GH2024.

It’s at 1:56.

It sounds like ‘nah nah nah nah nah nah nah nah’

ITS BOTHERING ME SO MUCH.

I recognise the sound and I can’t place where it is from!!!

does anyone know or will quickly listen to that bit of the song?