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2. Wotcher
Slang for "What's up" and "What are you up to"
Though many only reference this terms use in Harry Potter, The 2006 Sean Ellis film, Cashback, also has the younger protagonist and his girlfriend greet each other with this colloquial term.

Ben: Wotcher
Tanya: Wotcher

The term is pronounced "watch-uh"
1. wotcher
A British slang term formed by the contraction of "What are you up to?"
"Wot'cher up ta?" devolved into this now-common greeting. See also wotcha.
"Wotcher, Harry! Good to see ya, mate!"
by flamingsword May 23, 2005 add a video
3. Wotcher
An updated, shortened version of an older English greeting. The 17th century "What cheer?" became "Wotcher?" with assorted spelling (bein' 'as 'ow it's spoken English)
Wotcher mate, fancy a pint?
4. wotcher
Not used at all in day-to-day English in London.
Harry Potter and the Order of the Phoenix is perhaps the only example of "wotcher" being used.
5. wotcher
August 5, 2007 Urban Word of the Day
A shortened form of "what cheer!"

A greeting between friends, used mainly in London. Also spelled "wotcha."
"Wotcher, Harry!"

-Harry Potter and the Order of the Phoenix
by Lisa Radcliffe Apr 11, 2005 add a video
6. wotcher
A slang term used in means of greeting.
Wotcher cock!
by Jill Sep 13, 2003 add a video
7. Wotcher
1. An exclamation of surprise, chiefly British, meaning the equivalent of "watch out" or "watch it".

2. When used nonchalantly, can also mean something similar to "take care", or "good luck".
1.
James: (upon nearly stepping in a pothole) Wotcher!

2.
Greg: I've got three exams tomorrow.
James: Ooh.. wotcher.
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