Wotcher

[ladyramkin2000]

No: HPFGUIDX 90935

There is a similar Yorkshire expression "What fettle?" which means 
much the same thing - how's it going?  Wotcher or wotcha is a pretty 
old-fashioned expression.  It's used in old music-hall songs 
like "Knocked 'em in the Old Kent Road:  "Wotcha, all the neighbours 
cry..."  It's hardly ever used now, so I would agree that Tonks has 
picked it up from her Muggle dad and thinks it is the essence of cool.
Same goes for some of Ron's expressions.
Sylvia (remembering that Terry Pratchett's cheerily vulgar witch, 
Nanny Ogg, uses it a lot)