As an interjection wotcher
is (chiefly|british) a friendly greeting or wotcher can be (chiefly|british) what do you.
As a noun watcher is
someone who watches or observes.
wotcher
English
Etymology 1
Corruption of what cheer .
Interjection
(
en interjection)
(chiefly, British) A friendly greeting.
- [Dick Francis, 1962]
Etymology 2
Abbreviation of what do you .
Synonyms
* whatcha, watcha, wotcha
watcher
English
Noun
(
en noun)
someone who watches or observes
someone who keeps vigil
a guard
Anagrams
*