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An overtly flirtatious person who can't control themselves. They usually inspire boosted self esteem, sexiness, and on occasion arousal.
Counselor: There's nothing wrong with being coquettish.

by ChAoS__ThEoRy January 16, 2009
Behaving like or pertaining to someone who uses lots of cocaine.
James and Juliette are very coquettish.
by juntiac July 10, 2010