Green’s Dictionary of Slang

1. to leave, to depart.

1837		T. Carlyle Diamond Necklace 15/2: The untameablest of flies has again buzzed off; in wedlock with M. de Lamotte.
1904		Marvel 22 Oct. 4: You buzz off home.
1908		Gem 17 Oct. 4: We shall have to buzz off to Rylcombe.
1910		Marvel 15 Oct. 23: Suppose you buzz off to bed, and let me get some sleep.
1914		E. Pugh Cockney At Home 144: You better buzz off – quick!
1921		D.L. Sayers Unpleasantness at the Bellona Club (1977) 89: He must buzz off because he’d promised to hunt up a customer.
1925		Truth (Brisbane) 1 Feb. 7/4: ‘Haste that language and buzz off,’ said McCormick gruffly.
1943		H. Ranfurly diary 2 Dec. in To War With Whitaker (1994) 203: ‘Me,’ I replied and asked him to buzz off as I had work to do.
1949		Wodehouse Mating Season 147: Oh, all right, blast you, buzz off if you want to.
1953		K. Tennant Joyful Condemned 99: Well, you better buzz off [...] Or I’ll take you for consorting.
1961		‘Frank Richards’ Billy Bunter at Butlins 39: No, don’t buzz off for a minute, Bunter.
1978		A. Ayckbourn Joking Apart ll ii: Well, I think that’s as good a cue as any for us all to buzz off and leave you to your party, Debbie.
1982		Beano 3 Apr. 13: You buzzed off so quickly.
2012		R. Milward Kimberly’s Capital Punishment (2023) 437: Then, we buzz off without paying the bill.
2015		S. King Finders Keepers (2016) 105: Go on, spill it. Some boy you’ve been crushing on told you to buzz off?

2. in fig. use, to die.

1969

N. Spinrad Bug Jack Barron 23: How many of us in the good old US of A buzz off worth five hundred thou.