Green’s Dictionary of Slang

1. (US Und.) a police raid.

1937

C. Himes ‘Every Opportunity’ in Coll. Stories (1990) 249: The cops might see him in there and pick him up on a zoom.

2. zest, vivacity, enthusiasm.

1964		in Hamblett & Deverson Generation X 97: Perhaps also a man has to have a bit of an inferiority complex [...] to give him that extra zoom as a lover. A smug, inbred type like Roger doesn’t care if he’s a dead loss to a woman between the sheets.
a.1974		R. Crossman Diaries (1977) III 297: I am definitely losing political zest, looking and feeling more detached, with less zoom, watching, not believing in things, not as enthusiastic or inspired.

3. (drugs) amphetamine [the effects].

1971		E.E. Landy Underground Dict. (1972).
1987		(con. 1970s) J. Pistone Donnie Brasco (2006) 280: The pills were called Zooms and they were supposed to enhance your sex life.

4. (drugs) phencyclidine; marijuana laced with phencyclidine.

1982		Abel Marihuana Dict.
2001		ONDCP Street Terms 23: Zoom — Marijuana laced with PCP; PCP.