Etymology 1
Origin uncertain. Either from Middle English snurten (“to sneer; snort, snore”), a variation of snorten (“to snort”); or from Middle English *snyrten, an alteration of fnyrten, fnerten, from Old English fnǣrettan. Compare also Norwegian snurt (“vexed, peevish”), Middle English snirt (“stern, gloomy”).
Verb
snirt (third-person singular simple present snirts, present participle snirting, simple past and past participle snirted)
- (Scotland) To give a suppressed laugh or sharp intake of breath.
- 1833, Anonymous, writing in The Dublin University Magazine: A Literary and Political Journal, page 575, "Willie and Pate":
- "He grins, and snirts, and thraws ye ken —
I maist could die, wi' laughin."
1837, James Hogg, “Katie Cheyne”, in Tales and Sketches, page 172:"But ye see there was a great deal of blushing and snirting, and bits of made coughs, as if to keep down a thorough guffau."
1871, William Black, A daughter of Heth: A novel, page 160:The Whaup grew very red in the face, and ‘snirted’ with laughter."
Noun
snirt (plural snirts)
- (Scotland) A suppressed laugh; a sharp intake of breath.
Etymology 2
Blend of snow + dirt
Noun
snirt (uncountable)
- (Canada, US) Snow that is dirty, often seen by the side of roads and parking lots that have been plowed.
1975, United States House Committee on Appropriations Subcommittee on Agriculture and Related Agencies, Agriculture and Related Agencies Appropriations for 1976, page 175:We then have what we call ‘snirt’ storms.
1985, United States House Committee on Agriculture, General Farm Bill of 1985: Hearings Before the Committee on Agriculture, page 924:Snirt or a mixture of snow and dirt is the term popularly applied to the windrows of dirt along the roads during a Minnesota winter.
1997, William S. Burroughs, Last Words, Grove Press, →ISBN, page 73:‘Snirt’ is a thing of the spring.
2004, Dean Norman, Studio Cards: Funny Greeting Cards and People Who Created Them, Trafford Publishing,, →ISBN, page 131:[…] it wasn't a hard winter. Only a couple of blizzards and snirt and snuss storms.