Without thinking, I just ending a telephone conversation with, "Alright Duck".

#Staffordshire
#EastMidlands

PS: "Duck": Despite sounding like the bird, it is derived from the Anglo-Saxon term ducas, which was used as a form of respect, similar to "duke".

@jacattell First time I was referred to as "Duck" - as a teenager brought up in London and now on a factory floor in Nottingham - being addressed by a big bloke - I must admit I was somewhat confused.