A cruel chalicelike holder for a hot coffee cup.

those little cardboard thingies they put around your cup of coffee at starbucks. they call it a cup-sleeve, but it actually is called a zarf.

A cupholder on a submarine. Can be found riveted to any vertical piece of sheetmetal

To zarf something means to misrepresent or misunderstand something in a huge, embarrassing way. It's a neologism created by writer/performer M. C. Brennan, in affectionate reference to the character of Zarf on "All My Children". The antonym of grok.

Zarf is a term for an authorized hacking assault on a computer system, for purposes of testing the sytem defences. The useage is military and government. The term zarf was recently declassified, but not defined, by the American military.

(noun) lovable, multilingual nerd with great potential once he overcomes his shyness; and one who does not know what is coming to him during the Ides of March