Meaning

noun an acrobatic feat in which the feet roll over the head (either forward or backward) and return

noun hot or cold alcoholic mixed drink containing a beaten egg

noun a sudden, quick movement

originAlteration of earlier fillip, from Middle English filippen (“to make a signal or sound with thumb and right forefinger, snap the fingers”), an attenuated variation of flappen (“to flap, clap, slap, strike”). Cognate with Dutch flappen (“to flap”), German flappen (“to flap”).

Etymology from Wiktionary, CC BY-SA 3.0