Green’s Dictionary of Slang

1. to do something that generates noise.

1970		F. Collymore Notes for Gloss. of Barbadian Dial. 19: The door just blammed.
1978		Superbike n.p.: Sept.: [A motorcycle] Made to blam around a circuit at full bore [KH].
1983		K. Hudson Dict. of the Teenage Revolution 17: Blam. To race [...] It can refer to either people or machines, but it always involves a lot of noise.
1988		R. Doyle Commitments 33: Billy Mooney blammed away at his drums.

2. to knock.

1944		R.L. Bellem ‘Focus on Death’ Hollywood Detective Jan. 🌐 A brunette quail [...] blammed into me.
1970		‘Troy Conway’ Cunning Linguist (1973) 118: ‘I just want to get in there and blam the works out of that transmitter’.
2007		R. Milward Apples (2023) 178: I blammed really hard on her front door.

3. (UK Black) to shoot (dead).

2015		150 ‘4 Door Truck’ 🎵 Get blammed on the mains in the face, my niggas trynna take off hats.
2016		1011 ‘Next Up?’ 🎵 They rap about bootings, they ain’t blammed nobody.