Britishly
A way of describing a way someone saying an English word that is used in Britain.
Lavatory is a more britishly way of saying bathroom.
Britishly
Instead of being politically correct something is britishly correct
The inbetweeners is britishly correct
Britishly
When talking about a person who isn't British but says something british; adverb.
She said out and quite very britishly.