quirk

(noun): An idiosyncrasy; a slight glitch, mannerism; something unusual about the manner or style of something or someone
(noun): An acute angle dividing a molding; a groove that runs lengthwise between the upper part of a moulding and a soffit
(noun): A quibble, evasion, or subterfuge.
(verb): To move with a wry jerk.
(verb): To furnish with a quirk or channel.
(verb): To use verbal tricks or quibbles