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1.
Any amount of very finely ground material created as a result of mechanical surface friction.
When changing my engine oil, I noticed a little bit of metallic swarf on my magnetic drain plug.
by 175623226 December 29, 2011
 
2.
meaning entertaining. something that is interesting.
watching these two people fight is so swarf
by sparky mcgee March 21, 2007
 
3.
a sweater/scarf combo; a scarf with sleeves.
She looks hot in that swarf.
by missjuicy88 February 26, 2010
 
4.
the white remains left on a poly lens after being generated, safety beveled, or edged.
Christa forgot to clean the swarf off the lenses before she final inspected them.
by The Lab Rat March 30, 2009