Fwein

Fwein, typically referred to as the word "fein" which was popularized by Travis Scott's Top 100 Billboard song "Fein". Featuring Playboi Carti. People who have speech impediment can't say fein have to say "fwein" and therefore it is sigma.

"Fwein', fwein', fwein', fwein'-fwein' (yeah)
Fwein', fwein', fwein', fwein'-fwein' (yeah)
Fwein', fwein', fwein', fwein'-fwein'
Fwein', fwein', fwein', fwein' (yeah)