an expression originating from a tiktok of a recording sent in a dm that says "erm, what the sigma?" in Squidward's (from spongebob) voice. Typically used by people who have brainrot.
Mom: "I'm sorry but i would have to confiscate your ipad if you continue watching skibidi toilet videos."
kid with brainrot: "erm, what the sigma?"
kid with brainrot: "erm, what the sigma?"
by vtrbus April 29, 2024