arsefixiation 

suffocation by means of analingus

Callum passed out from lack of oxygen after a big butt buffet due to arsefixiation (ie the act of burying ones breathing holes in ones arse-hole and cheeks).

arsefixiation by The Bogan Within January 13, 2013

Assfixiation 

When someone nearly asphyxiates you with their ass.

Are you ready for some nice Assfixiation honey?

Assfixiation by Bianca Bellaschnee January 24, 2024