quirk
/kwɜːk/
noun
Meaning
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.
verb
Meaning
To move with a wry jerk.
"He quirked an eyebrow."
To furnish with a quirk or channel.
To use verbal tricks or quibbles