Green’s Dictionary of Slang

flute v.1

[SE flute v.]

(Aus.) to talk incessantly.

[Aus]Dead Bird (Sydney) 4 Jan. 2/1: The game ’un was out to dinner the other night, and [...] fluted to the wife of his bosom on the many beauties of Miss Decollete, who sat opposite to him.
[Aus]Stephens & O’Brien Materials for a Dict. of Aus. Sl. [unpub. ms.] 75: [...] to flute – to talk.
[Aus]‘Dryblower’ ‘Wongi on Water’ inSun. Times (Perth) 7 Feb. 4/7: We chips ole Carr, and he starts flutin’ about ‘ow ’e aster git np before sunrise and lick the doo orf ther grass.
[Aus]Bulletin (Sydney) 20 Oct. 43/1: That’s where we fall in – or, rather, it’s where those hundreds you were fluting about disappear.
[Aus]E. Dyson ‘Barracking’ in Benno and Some of the Push 140: T’ hear him flute you’d think he’d discovered th’ whole team on a doorstep.
[Aus]Williamstown Chron. (Vic.) 1 June 6/3: On thing, I was wrong when ‘fluting’ about this business was the foundation.
[Ire]J. Phelan Letters from the Big House 144: ’E says as ’is china bust a two-handful kite, Scotch jug, flutes the bogeys cause the jumper ses the moniker’s bent. Slung ’em the madam, an’ copped.
[UK]A. Baron Lowlife (2001) 6: All the sort that flute ‘Mummy’ and ‘Daddy’ in high-class accents.

In phrases

flute about (v.)

(Irish) to vacillate.

[Ire]P. Howard The Joy (2015) [ebook] ‘Look, what’s the fucking story? Are yiz getting out or what? [...] Stop fluting around and tell me where yiz are wanting to go’.
on the flute

(Aus.) talking continually.

[UK]A. Wright A Rogue’s Luck (1931) 161: Gor blime, oncet you get on th’ flute about th’ good old days of th’ game, yer dead ter talk orl night.