To sniff back a noseful of snot because either you haven't got a handkerchief or you're just too lazy to blow your nose.
This is the opposite of a "Pitmon's Hankie", whereby you press a thumb or finger against a nostril and blow forth snot through the other one onto the pavement.
"Stop snurching and blow your nose you derty get... I'm trying to eat me dinner here!"
From "Biggles Grebs Aloft" by Monty W. Bungingham
To steal or swipe
an available item. Usually used in a joking manner.
That is so cool! I'm snurching it, if you don't mind.
An amazing website that looks at the world, one city at a time, with large snarky eyes.
Apparently 'smell', as a verb. I knew a roadie who sometimes included the word in the lines he yelled from the truck at passing girls. This was UK, circa 1975, and the roadie was from the county of Dorset.
"Gie us a snurch of yer knickers"!