n. 25B6; noun
the engine makes such a racket : NOISE, din, hubbub, clamour, uproar, tumult, commotion, rumpus, pandemonium, babel; informal hullabaloo; Brit. informal row.
(informal) a gold-smuggling racket : ILLEGAL SCHEME, fraud, swindle; informal rip-off; N. Amer. informal shakedown.