fancy doing sth

[kettu]

In our English class a student and a teacher are having a discussion about the expression "fancy doing sth". One of them says this phrase is old-fashioned and out-dated. The other says it is still in use. We're learning British English at school. What is right? Thanks.

 

[5jj]

I, a speaker of BrE, use and hear it.

 

[bhaisahab]

I, a speaker of BrE, use and hear it.

So do I.