Green’s Dictionary of Slang

chew someone’s ear v.

also chew someone’s lug
[SE chew + ear/lug n.1 ]
(Aus.)

1. [late 19C–1900s] (also bite someone’s lug) to cadge, to beg.

2. [late 19C+] to talk intensely.

3. [late 19C+] (also chaw someone’s ear-flaps off, chew someone’s ear off, …nose off) to nag, to talk tediously at someone.