English▸ noun [mass noun] informal language used to give the impression of arcane knowledge or power:
I get so fed up with all the mumbo jumbo and abracadabra.
▪ the implausibly easy performance of difficult feats:
the creation of profits was a marvellous bit of abracadabra.
– ORIGIN mid 16th century (as a mystical word used as a charm to ward off illness): from late Latin (4th century AD), of uncertain origin.