Green’s Dictionary of Slang

(US black) to get married.

1940

‘Digg Mee’ ‘Observation Post’ in N.Y. Age 7 Dec. 10/5: When are Hansel Smith and Velma Roberts going to commit ‘suicide’.

(orig. US) a woman with dyed blonde or peroxide blonde hair.

1924		Vancouver Sun (BC) 13 Jan. 20/1: Cissy Fitzgerald is having the time of her young life playing ‘The Suicide Blonde’ in [...] ‘Fighting Gold’.
1929		Gazette (Montreal) 15 Jan. 12/7: ‘Your girl is a blonde eh? Suicide or natural?’.
1931		Public Opinion (Chambersburg, PA) 27 Nov. 8/6: ‘She’s only a suicide blonde.’ ‘Suicide blonde?’ ‘Yes. Dyed by her own hand’.
1934		G. & S. Lorimer Stag Line 138: ‘Suicide blond?’ I said weakly.
1943		Baker ‘Influence of Amer. Sl. on Aus.’ in AS XVIII:4 256: Here is a representative group of Americanisms which have wide currency in Australia: [...] suicide blond.
1949		Boston Globe (MA) 26 Nov. 11/3: You spy a gorgeous blonde [...] Just walk over, look her straight in the eye, and ask, ‘Are you a suicide blonde?’.
1956		Town Talk (Alexandria, LA) 8 Mar. 18/7: A suicide blond — dyed by her own hand.
1975		Dayton Dly News (OH) 21 July 9/1: A Dayton hairdressed who refers to one of her customers as a suicide blonde because she ‘dyed by her own hand’.
1981		Sydney Morn. Herald 29 Dec. 7/1: [headline] Suicide blondes to turn heads in 1982.
1989		Vincent Curcio [bk title] Suicide Blonde: The Life of Gloria Grahame.
1998		G. Burn Happy Like Murderers 103: Rena was a ‘suicide blonde’.
2004		Brisbane Instit. 18 Nov. 🌐 The ‘Indy Carnival’, a ‘celebration’ for petrol-heads and suicide blondes.

rear doors fixed to the trailing edge, nearer the rear of four-door vehicles and seen as easily opened when the car was moving and thus dangerous; such doors (as yet not nicknamed) were in use in the first half of the 20th century .

1965		Antique Automobile 29:2 55: The side of the hood and the ‘suicide doors’ look like [the] 1935 Hudson.
1976		C. Hampden-Turner Sane Asylum 99: In my dealing days I wore a Stetson, black leather pants and jacket, cowboy boots; and I drove a ’36 Plymouth with suicide doors. I talked like Edward G. Robinson.
2012		G. Pelecanos (con. 1972) What It Was 122: Black late-sixties Lincoln with suicides.
2021		T. Pluck Boy from County Hell 299: Chopper [...] climbed out the suicide door and jogged toward the fence.

US a knob fixed to the streering wheel that is intended too facilitate one-handed steering.

2017

T. Pluck Bad Boy Boogie [ebook] The old bruiser had a suicide knob bolted to the wheel and drove the land yacht in slow, sweeping curves.

(Aus.) used in Northern Territory to refer to the rainy season or ‘Wet’, considered unendurable by many people.

1971		P. Bodeker Sandgropers’ Trail 11: We close the dry winter season for our six months’ fishing because summer up north is ‘the wet’, a contrasting period of searing heat and tropical floods, known in the Territory as the ‘suicide months’.
1975		K. Willey Ghosts of the Big Country 143: A ‘long grass job’ referred to the practice of those inhabitants who during the Wet—also known as the Suicide Season—would sometimes creep off into the cane-grass and there slit their throats.
1978		M. Douglas Follow Sun 167: The locals call it ‘suicide month’ – November, that unendurable time of the year when the ‘wet’ begins in Australia’s north [AND].

the seat beside the driver, considered to be more vulnerable in a crash.

1952		El Paso Times (TX) 27 Apr. 69/1: ‘What men forget is that a woman in the suicide seat has no steering wheel to hold on for a sense of security!’.
1961		Birmingham Dly Post 28 Sept. 8/8: Colledagues at the Royal Society for the Preventionof Accidents have coined the grisly term ‘suicide seat’ for the front passenger seat of any car.
1963		Courier-Post (Camden, NJ) 1 May 18/7: Do you have your seat belt and more important, one for the suicide seat?
1977		Orlando Sentinel (FL) 3 July 90/1: The suicide seat is the one next to the driver, to his left.
1984		LaBarge & Holt Sweetwater Gunslinger 201 (1990) 81: The taxi careened around people and other cars as it literally roared down the middle of the street [...] ‘Hey sucker,’ yelled Sundance sitting in the suicide seat, ‘what do you think this is? The Indianapolis 500?’.
1995		Kinder Courier News (LA) 29 June 4/3: I see people every day with children riding [...] with no belts, sitting in the lap of adults riding in the ‘suicide seat’.
2002		Corvallis Gaz.-Times (OR) 7 Apr. 2/4: OSSOM soon expanded from drunk driving into other youth safety issues, such as suicide seat belt use.
2011		Chippewa Herald-Telegram (WI) 24 Aug. 7/1: The person riding in the middle of the front seat of an automobile is said to be sitting in the suicide seat.