This is a sound alert of PaymoneyWubby saying "SHEESH" very quickly. It was recorded during the stream that aired March 28th, 2021.
The clip is heard at 35:29.
Wubby first introduced SHEESH to the stream on January 22nd, 2021.
Starts at 19:20 on the below video:
It's speculated Wubby got SHEESH from this video: