Am I the only one who did not know what a ‘larrikin’ is? Had to look it up according to dictionary it is a Maverick! Anyway it is how Eddie is describing Marler in D.Tel this morning. When he first went back into England camp he was way off the pace but he is a huge influence in camp on and off the field and caught up quickly once he joined training.

Wikipedia gives an explanation
https://en.wikipedia.org/wiki/Larrikin

From the true-blue Crocodile Hunter to the blue humour of Stiffy and Mo, from the Beaconsfield miners to The Sentimental Bloke, Australia has often been said to possess a 'larrikin streak'.
Today, being a larrikin has positive connotations and we think of it as the key to unlocking the Australian identity: a bloke who refuses to stand on ceremony and is a bit of a scallywag. When it first emerged around 1870, however, 'larrikin' was a term of abuse, used to describe teenage working-class hell-raisers who populated dance halls and cheap theatres.

I remember this term from Neighbours in the early nineties!!!
It was used to describe Marge's wag of a husband Lou Carpenter. He was a car salesman, a charmer and a bit of a comedian. Some of those things apply to Joe, definitely!