flatboat, n. punt.
flatfoot, n. splayfoot.
flatfooted, a. splayfooted; (Slang) determined, [resolute], [unwavering], firmfooted.
flatiron, n. sadiron.
flatnosed, a. simous.
flatter, v. [blandish], [cajole], [wheedle], compliment.
flatterer, n. wheedler, [sycophant], [toady], pickthank, [flunky], Jenkins, adulator, blandisher.
flattering, a. [wheedling], adulatory, [alluring], blandiloquent, [sycophantic], [obsequious].
flattery, n. adulation, [blandishment], [wheedling], flummery, blandiloquence, [cajolery].
flaunting, a. [ostentatious], [showy].