snot+barf=snarf: A violent expulsion of masticated food or liquid via the sinus cavity usually caused by an involuntary reaction from an external stimuli. I.e. laughter, surprise, a sneeze, etc.
I was getting ready to swallow a huge bite of my hot pocket when John exclaimed he had shit himself. Needless to say, I SNARF-ED my hot pocket with such force most of it splashed into my chocolate milk. That which was not expelled from my sinus cavity was firmly lodged behind my eyeball...heh, heh, heh...I can still smell it. It would have been a lot less painful had it been pudding.
An individual, usually male, but in today's society may be a female, who sniffs girls' bicycle seats. The individual must be 13-16 years only to qualify as a Snarf. If the Snarf is younger that 13, they are just stupid. Older than 16 the Snarf is a freaking pervert. It is perfectly acceptable for a person from 13-16 to be a Snarf.
The Snarf eagerly put his/her nose to the girl's bicycle seat after the rider dismounted the vehicle.