Green’s Dictionary of Slang

crip n.

[abbr. SE cripple]

1. (also crippo) a disabled person.

[US]O. Wister diary 21 Feb. in Wister Owen Wister Out West (1958) 153: A man lame from being shot in the leg is ‘Crip’ Jones.
[US]A. Adams ‘Bad Medicine’ Cattle Brands [Internet] [of cattle] when the rear guard of crips and dogies passed this impromptu review, we all waited patiently for the verdict.
[US]R. Bradford This Side of Jordan 2: They regarded old Aunt Crippled Lou with sympathy [...] Aunt Crip understood the bayou.
[US]J.C. Rogers ‘South’ in Botkin Folk-Say 151: He was a crip and couldn’t do any work.
[US]N. Algren Never Come Morning (1988) 155: I told him her old man was a crip.
[US]‘Hal Ellson’ Rock 5: I don’t want to fight this crip.
[US]P. Thomas Down These Mean Streets (1970) 51: Little Crip, small, dark and crippled from birth, came tearing down the block.
[US]H. Selby Jr Demon (1979) 10: He cant see Steve. Letim hitit, his a crip.
[US]S. Morgan Homeboy 331: How’d dem crips get the jack inside?
[US]T. Udo Vatican Bloodbath 59: Having to ask polite questions of grovelling mongrels, half-breeds, half-wits, crippos.
[UK]M. Haddon Curious Incident of the Dog 56: People used to call [...] the children at school spaz and crip and mong.

2. (orig. US campus, also cript) anything easy; esp. in crip course, of a given college course [note crib n.3 (4)].

[US]University of Virginia Mag. Oct. 16f: Crip has about driven snap into oblivion [...] probably [...] the word came into collegiate use via the poolroom [W&F].
[US]L.P. Boone ‘Gator Sl.’ AS XXXIV:2 156: A crip is an easy course.
[US]C. Cooper Jr Weed (1998) 134: The sixball had interrupted a crip, it being an easy straight-back or cross-corner.
[US]Baker et al. CUSS 101: Crip course Easy course.
[US]Eble Campus Sl. Apr. 2: crip course – an easy course.
[US]Eble Campus Sl. Fall 3: crip – easy: Man, we’ve got four tests and a paper. I thought you said this was a crip course.
[US]Eble Campus Sl. Nov. 2: crip(t) – easy. English 36 is going to be my best cript.
[US]Eble Sl. and Sociability 47: The phrase crip course had been well established in college slang for decades, formed as a clipping of a cripples’ course, or perhaps a crippled course.

3. a wounded animal.

[US] Wentworth & Flexner DAS 130/2: crip n. A crippled horse.
[US]‘Iceberg Slim’ Mama Black Widow 92: The crip [i.e. a rat] glared venemously at me and bared yellow fangs.

4. (UK juv.) a general insult; physical deformity is irrelevant.

[US]Current Sl. II:2 9: Crip, n. An uncoordinated person, a ‘spas.’.
OnLine Dict. of Playground Sl. [Internet] crip n. An excessively clumsy, stupid or unpleasant person.

In phrases

straight crip (n.)

(US tramp) a genuinely disabled person; thus phoney crip, one who poses as disabled for begging purposes.

[US]‘A-No. 1’ Mother of the Hoboes 43: The Rating Of The Tramps. 21 Straight Crip: actually crippled or otherwise afflicted. 22 Phoney Crip: self-mutilated or simulating a deformity.
[US] in ‘Jargon of the Und.’ in DN V.
[US]Irwin Amer. Tramp and Und. Sl. 185: Straight Crip. – A crippled beggar with a real deformity.
[US]Monteleone Criminal Sl. (rev. edn).
[SA]L.F. Freed Crime in S. Afr. 106: A ‘straight crip’ is a cripple whose deformity is genuine and not faked.