Green’s Dictionary of Slang

trip n.4

1. in the context of hallucinogenic or other drugs.

(a) [1920s+] the experience that follows the ingestion of LSD or another hallucinogenic, or occas. narcotic.

(b) [1960s+] a dose of a hallucinogenic drug, usu. LSD.

(c) [1970s+] any form of drug experience.

2. in fig./ext. uses of sense 1.

(a) [1960s+] any form of experience, event, lifestyle or attitude.

(b) [1960s+] a challenging, surprising or otherwise out of the ordinary experience; often as it’s a trip.

(c) [1970s] anything considered simple.

(d) [1970s+] (US campus) an odd, eccentric person; a funny person.

(e) [1980s] an argument, a lecture, a story.

(f) [1980s+] (US campus) a cheering, pleasing event.

In derivatives

tripper (n.)

see separate entry.

In compounds

triphead (n.) [sense 1 above + -head sfx (4)]

[1990s+] (drugs) a regular consumer of LSD.

In phrases

businessman’s trip (n.) (also businessman’s lunchtime high, businessman’s special) [unlike the eight-hour duration of a ‘normal’ LSD trip, sense 1a above, this vastly intensified experience lasts only a few minutes, leaving the user free to get on with other things]

[1960s+] (drugs) dimethyltryptamine.

Cam trip (n.) [Cam n.]

[1960s+] (drugs) a very potent, almost hallucinogenic variety of marijuana.

death trip (n.)

[1960s+] a fantasy about death, often stimulated by (hallucinogenic) drugs; also as adj.

down trip (n.) [down adv.1 (1) ] [1960s+] (drugs)

1. an unpleasant experience induced after taking LSD.

2. in fig. use., anything unpleasant, tedious, depressing.

freak trip (n.)

[1960s] (US drugs) an unpleasant experience following the taking of LSD.

natch trips (n.) [abbr. SE natural ]

[1960s] (drugs) a variety of quasi-drug experiences gained from smoking such natural substances as nutmeg, banana, mace, etc.

on an ay yo trip (adj.) [the cry of Ay! Yo!]

[1980s+] (W.I./UK black teen) used of one who is forever demanding attention, making themselves conspicuous.

on a trip (adj.) [1960s+] (drugs)

1. under the influence of drugs.

2. crazy, temporarily insane; disorientated.

SE in slang uses

In phrases

take a trip to the West Indies (v.)

[early 19C] (UK Und.) of a suspect criminal, to leave a town or place to avoid arrest.

trip to the moon (n.) [moon n. (1a)]

[1940s+] (orig. gay) anal intercourse.