If you would like to offer someone a cup of tea, you can say "fancy a cuppa?"

'Fancy...?' is a shortened form of 'do you fancy' and means 'do you want?'

For example,

Fancy a chat?

Fancy a beer?

Fancy a film?

'A cuppa' is the way we pronounce 'a cup of' in spoken english.

When we say a cuppa, we use a schwa sound at the start and end.

A cup of coffee.

A cup of hot chocolate.

A cup of tea.

In addition to saying a cuppa instead of a cup of in spoken english, we can also use a cuppa as a noun meaning 'a cup of tea'.

So, "fancy a cuppa?" means "do you want a cup of tea?"

Fancy a cuppa, anyone?

That was bbclearningenglish.com