Green’s Dictionary of Slang

spliff n.

also spleef, splif

1. (orig. W.I., esp. Rasta) a marijuana or hashish cigarette [spiflicate v.; i.e. the effects].

[WI]Daily Gleaner (Kingston, Jamaica) 3 Oct. 35: Here is the hot-bed of ganja smoking ... and even the children may be seen at times taking what is better known as their ‘spliff’ [OED].
[UK]R. Mais Hills were Joyful Together (1966) 214: He was smoking a spliff. He could smell the weed.
[UK]C. MacInnes Absolute Beginners 76: He’d just been dragging on a splif inside the toilet.
[UK]A. Salkey Late Emancipation of Jerry Stover (1982) 97: ‘You feel up to a secon’ spliff?’ he asked cautiously.
[UK]M. Novotny Kings Road 133: Pass me my bag, there’s another spliff in it.
[UK]M. Thelwell Harder They Come 284: At lunch time every day Chin smoked a single spliff.
[US]Grandmaster Melle Mel ‘King of The Streets’ [lyrics] Selling dope, smoke, smack, and crack a lack a lack, the sess mess spliff, or the chunk, chunky black.
[UK]V. Headley Yardie 26: D. was busy drawing on a spliff of prime sensimillia.
Urban Dict. [Internet] spleef A rolled marajuana [sic] cigarette.
[UK]K. Sampson Powder 82: When did serial pot-smoking ever help sharpen the senses? Long Richard was never without a spliff on the go.
[Aus]R.G. Barrett Mystery Bay Blues 157: What about de ganja, mon [...] Are we goin’ to smoke de spleefs.
[UK]B. Hare Urban Grimshaw 44: All right to make a spliff, Frank, mate?
Away Team ‘Greedy’ [lyrics] I don’t want a hit of it, I want the whole spliff.
[UK]K. Richards Life 14: There was time to light up a spliff.
French Montana ‘Pop That’ [lyrics] Sorry that’s a habit, smoke a spliff, and then I vanish.

2. (US campus) a particle of food lodged between teeth [ety. unknown].

[US]Eble Campus Sl. Mar. 5: spleef – [...] any particle of food caught between the teeth: After finishing her corn on the cob, Sara smiled and proudly displayed her yellow spleefs.

3. (UK prison) a hand-rolled cigarette; a cigarette-paper.

[UK]S. McConville ‘Prison Lang.’ in Michaels & Ricks (1980) 525: Tobacco [...] is smoked in a roll-up or spliff, the paper of which is called a skin.
B. Robinson Withnail and I [film script] danny: The joint I am about to roll requires a craftsman and can utilize up to twelve spliffs. It is called a Camberwell carrot. marwood: It’s impossible to use 12 papers on one joint. danny: It is impossible to roll a Camberwell carrot with anything less.

4. cannabis.

[US]Eble Campus Sl. Mar. 5: spleef – marijuana.
[UK]N. Griffiths Grits 9: Ther all wirkin up an appetite in thuh front room with spliff an videos.
E. Damerson in Dusted Mag. at Trikont.com [Internet] As capitalism and debauchery proceeded from flirtation to full-tilt codependency, the media needed a patsy. The dew was scapegoated for political reasons outside the scope of, uh, a record review, let’s say that’s what established the spliff’s furtive aura.
Skins ser. 1 ep. 1 [TV script] We’ll have a shed-load of spliff.
Q. Vidal ‘Third Rail’ [lyrics] A video with a hella weed in it / So they see CE ain’t afraid of no spliff.

5. (US black) a male friend or companion [ety. unknown].

[US]Ebonics Primer at www.dolemite.com [Internet] spliff Definition: male companion or friend; term used to greet someone Example: Yo spliff, ima smoke some of this phat cheeba!

In compounds

spliffhead (n.) (also spliff-man) [-head sfx (4)]

(drugs) a smoker of cannabis.

[WI]Shango Baku ‘Revo’ in Three Plays (1984) II i: Maybe we draw a picture, eh? [...] small weedy spliff-man, eh?
[UK]N. Cohn Yes We have No 177: A bunch of spliffheads, musicians and girls of bad intentions.

In phrases

build a spliff (v.) (also bill a spliff)

to roll a cannabis cigarette.

personal communication: Let me show you how I build my spliff.
[UK]N. Barlay Curvy Lovebox 130: I start billin’ up a little spliff of leb.
[UK]Skepta ‘Ladies Hit Squad’ [lyrics] After we done, bill a spliff and cotch / Pour me a glass of the Henny on the rocks.
Young M.A. ‘I Got the Bag’ [lyrics] We living, we billin, fat blunts, weed spilling.