Folly

v.

To go in pursuit of; to chase. Not to be confused with the road connecting Ballytruckle and Grange.

In use

Dat yungwan follied me home after school again yesterday lads! She's as odd as me arse!

Let Lawrence Muck translate it to posh English for you
Lawrence Muck

I say, what a pleasant surprise. Would you like me to translate 'Folly' in use for you?

That young lady followed me home from school again yesterday, gentlemen! She is as peculiar as my own posterior!