UNFLAPPABLE

PRONUNCIATION: (uhn-FLAP-uh-buhl)

MEANING: adjective: Staying calm even in difficult circumstances.

ETYMOLOGY: From Middle English flap (to beat or shake), probably of imitative origin. Earliest documented use: 1958.
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UN-LAPPABLE - impossible to outrace by more than one full length around the course

UNIFLAPPABLE - when you can shake the wrinkles out, but only once

UNFAPPABLE - Major Hoople when he can't be disconcerted or taken aback