Green’s Dictionary of Slang

1. to crash some form of vehicle or conveyance, e.g. a car, an aeroplane.

1896		Ade Artie 156: Every guy cracks up his own wheel, and says all the others is made out o’ sheet iron and bum castin’s.
1929		W. Winchell On Broadway 4 Oct. [synd. col.] Somebody asked Ruth how she felt when she found herself over the [air] field and realized she had a chance of ‘cracking up’ very badly.
1935		F. Nebel ‘Winter Kill’ in Goulart (1967) 119: You said you didn’t want Parcell to drive home because he might crack himself up and you fellows would be out some dinero.
1942		C.R. Bond 4 Mar. in A Flying Tiger’s Diary (1984) 121: One of them cracked up on landing.
1951		J.D. Salinger Catcher in the Rye (1958) 88: I was afraid he was going to crack the damn taxi up or something.
1964		H. Selby Jr Last Exit to Brooklyn 26: He had stolen a car and was speeding along Ocean Parkway [...] and cracked up.
1973		W. Pep in Heller In This Corner (1974) 252: January 1947 I cracked up [...] flying in from Miami. I was in pretty bad shape.
1986		S. King It (1987) 89: He came home, cracked up the yellow convertible his folks had given him as a graduation present.

2. (UK drugs) to suffer an unpleasant experience when smoking cannabis [SE crack up, to have a nervous break-down].

1961		T. Taylor Baron’s Court All Change (2011) 33: ‘Not too much for the first time. We don’t want you cracking up’.
1961		T. Taylor Baron’s Court All Change (2011) 78: Ruby was getting a bit overstoned [...] she cried, ‘I’m cracking up!’.