Green’s Dictionary of Slang

earbash v.

also bash someone’s ear
[SE ear + bash v. (1); lit. to ‘hit one’s ear’]
(orig. Aus./N.Z.)

1. (also earbang) to talk incessantly; also as a n., a chat.

[Aus]L. Glassop We Were the Rats 205: Time for you bastards to do some spine bashing. [...] Are you going to sit there ear bashing all night?
[Aus]J. Cleary Sundowners 227: It looked like being an ideal day for a beer and an ear-bash.
[Aus]K. Tennant Joyful Condemned 22: She was ear-bashing me all over tea how you came lairizing round at our place like you owned it.
[Aus]‘Nino Culotta’ Cop This Lot 196: Why do Ities keep ear-bashin’ each other all the time?
[Aus](con. 1944) L. Glassop Rats in New Guinea 177: Yer always earbashin’ me about that.
[Aus]F.J. Hardy Yarns of Billy Borker 56: Always bashing their ear about how much money he was making.
[Aus](con. 1941) R. Beilby Gunner 9: When the MPs arrived they would find the crowd lounging around, sipping beer and earbashing.
[NZ]McGill Dict. of Kiwi Sl. 42/1: earbash to talk.
[Aus]G. Seal Lingo 87: Many Lingo terms refer to, involve, or name parts of the human body [...] Ears may be bent, chewed, or we may be earbashed.
[US]W.T. Vollmann Royal Family 720: The preacher earbanged him and then gave him soggy [...] casserole.
[NZ]McGill Reed Dict. of N.Z. Sl. [as cit. 1988].

2. to subject to one’s opinions, grievances etc; thus as n.

[Aus]S. Gore Holy Smoke 52: What about gettin’ off your spine and givin’ your God an earbash as well?
[Aus](con. 1930s) F. Huelin ‘Keep Moving’ 52: Anyway, we have to get to the Mil. before we can ear-bash any rep.
[Aus]C. Bowles G’DAY 108: Meanwhile Mrs Marshall is ear bashing one of the guests.
[Aus]M. Bail Holden’s Performance (1989) 291: Has the old boy been bashing your ear? I bet he has. Christ, he’s full of garbage sometimes.