An idiosyncrasy; a slight glitch, mannerism; something unusual about the manner or style of something or someone

“The car steers cleanly, but the gearshift has a few quirks.”

An acute angle dividing a molding; a groove that runs lengthwise between the upper part of a moulding and a soffit

A quibble, evasion, or subterfuge.

To move with a wry jerk.

“He quirked an eyebrow.”

To furnish with a quirk or channel.

To use verbal tricks or quibbles