Definitions by Bryan Turner

Monostril 

1: Person who has consumed excessive hard drugs via their nostrils causing the loss of their septum.
2: A single cavity in one's nose.

"If you put any more of that stuff up your nose you'll end up a/with a Monostril!"
Daniella Westbrook, Francis Rossi.

Monostril by Bryan Turner July 28, 2008