Green’s Dictionary of Slang

baked adj.

1. (also baked up) exhausted; lit. or fig. finished.

[UK]New Sprees of London 14: [of a shut-down public house] Savage's crib is baked, it is reported; the gorger was too clever, and was suspected of laying a plan for effecting perpetual motion [...] this dodge made the rumculls crabby, and they clapped the rephoop on him, and dubbed his gigger.
[UK]Sam Sly 6 Jan. 3/3: He advises Mr. J—s M’C—y (Pineapple Jack) [...] not to bite his donkey’s ear to make him go when he’s baked [...] and not lash the poor beast with a drover’s stick.
[Aus]Bell’s Life in Sydney 28 Feb. 3/3: Gurrick came up almost baked; steadying himself at the scratch.
[UK]T. Hughes Tom Brown at Oxford (1880) 153: Long before the Cherwell Drysdale was completely baked.
[UK]Leaves from Diary of Celebrated Burglar 39/1: He seemed to be about as much baked up as any of us, and not in the best of humor.
[Aus]C. Money Knocking About in N.Z. 141: I [...] was not sorry to turn in early that night, pretty well baked.
[UK]‘Old Calabar’ Won in a Canter I 62: ‘Guardsman baked!’ shouts the ring, as the horse is seen nearly last.
[Aus]‘Rolf Boldrewood’ Robbery Under Arms (1922) 71: Pulled up before if I knowed your horses were getting baked.
[Aus]Bulletin (Sydney) 17 Mar. 24/1: Again the public saw Merriwee run far more prominently than Parthian from end to end of the Australian Cup, but they probably didn’t notice how ‘baked’ the little fellow was after the race.
[Aus]Stephens & O’Brien Materials for a Dict. of Aus. Sl. [unpub. ms.] 8: BAKED: slang tired out, done up, sometimes drunk.
[US]C. Bukowski Erections, Ejaculations etc. 113: I was done ahead of time – baked, fucked, screwed-out, nothing left.
[US]D. Hecht Skull Session 296: By the time he got back to his apartment, feeling baked, beat, fried.
[US]S.M. Jones August Snow [ebook] The guys who review the recordings at home office? Mostly baked. Basic training washouts or tech geek weenies working on their résumés.

2. (also baked up) sun-burned or very tanned.

[Aus]Sth Aus. Register (Adelaide, SA) 20 Apr. 2/6: During the hot months of summer [...] we are apt to get ‘baked,’ to use our own expressive colonial slang, and we all long for a cooling dip in the sea.
[Aus]Bulletin (Sydney) 28 Feb. 18/3: We don’t say that our girls here are entirely guiltless in the matter of rogue and pearl cream, but they are wonderfully modest that way – they are indeed. It may be they don’t require it as much as those baked-up Northerners’ anyhow, we will be charitable, and suppose it is the case.
[US]P. Munro Sl. U. 27: After lying in the sun for five hours I was totally baked.

3. (US campus) drunk.

see sense 1.
[US]Eble Campus Sl. Oct. 1: baked – very drunk [...] half-baked is half way to being drunk.
[UK]M. Belmonte Compter Science and Why (1993) 🌐 These people are [...] smokin’, toasted, fried, baked, sauced, fricasséed.
[US]Eble Sl. and Sociability 44: Overindulgers in alcohol or drugs are pictured as the objects of various kinds of destructive processes: heat (baked, burnt out, toasted).
[US]D. Swierczynski California Bear 23: ‘Let’s go get hammered,’ Hightower said. At this point [...] Jack was pretty sure Hightower was as baked as a potato.

4. (US) under the influence of a drug, usu. marijuana.

[US]Eble Campus Sl. Fall.
[US]P. Munro Sl. U. 27: I don’t understand how he goes to class baked and still gets good grades!
New Directions Program 🌐 Marijuana-using adolescents refer to people who are under the influence of marijuana as being: ‘baked’, ‘wasted’, ‘stoned’, ‘lit’, ‘blazed’, ‘faded’.
[US]Teen Lingo: The Source for Youth Ministry 🌐 baked adj. The effect of smoking a lot of marijuana. To be stoned. ‘John’s eyes are all bloodshot, I think he got baked at recess.’.
[Can]Toronto Star 6 May n.p.: ‘I know it’s hard to organize yourself while you’re baked,’ the marijuana party of Canada’s Larry Duprey told the crowd before they set out for the march. ‘You’ve got to think about the traffic coming from the other direction,’ he urged.
[US]G. Pelecanos Way Home (2009) 14: He had gotten massively baked the night before the exams.
[US]C. Hiaasen Star Island (2011) 45: I was totally baked on China White.
[Aus] G. Johnstone ‘No Through Road’ in Crime Factory: Hard Labour [ebook] He brought round a little bag of weed and we got baked.
[Aus]‘First Dog on the Moon’ in crikey,com.au 2 July 🌐 Half my class are usually baked anyway.
[US]T. Dorsey Riptide Ultra-Glide 36: They can tell you’re totally baked. Your pulse race, you can’t catch your breath [etc].
hubpages.com ‘Roadman Slang 4 Jun. 🌐 Lean/faded/baked - high on marijuana.
[US]C. Hiaasen Squeeze Me 14: ‘I believe you’re baked [...] ‘I am toally legal [...] The weed is for migraines’.