Green’s Dictionary of Slang

1. to throw (hard).

1896		Regiment 5 Sept. 342: [cartoon caption] He buzzed the whole lot at his head.
1905		Sporting Times 13 May 4/4: Buzz away, Frank, old man; don’t you mind ’em.
1927		(con. WW1) P. MacDonald Patrol 42: ‘That lead confetti you buzz out of cane-handled shovels . . . it stings like rain in hell’.
1948		C. Day Lewis Otterbury Incident 23: The Prune buzzed a half-brick at Ted. I should have said we’d made a strict rule against throwing stones during our battles.
1958		Willans & Searle Complete Molesworth (1985) 53: There is no need [...] to buzz a brick at it.
2001		OnLine Dict. of Playground Sl. 🌐 buzz v. to throw, as in ‘Oi... buzz it over ’ere mate?’.

2. (Aus.) to send away.

1989

M. Walker How to Kiss a Crocodile 37: [A]ctually Neil had buzzed him away from us because he was too close to the back swing.