Any amount of very finely ground material created as a result of mechanical surface friction.

when you're hungover as shit after a spending a night drunk as a skunk

meaning entertaining. something that is interesting.

the white remains left on a poly lens after being generated, safety beveled, or edged.

commonly found in most engineering practices. swarf is a small, thin, sharp shard of metal. which flies off of material as you cut it.

a sweater/scarf combo; a scarf with sleeves.