Blow it out yer arse

phr.

Heard in Tipperary

Cocky/full of ones self. Also: Telling lies/Talking shit.

In use

Im unreal at handball altogether... Ahh Blow it out yer arse now! Im a mile better.

Posh English

I am exceptionally proficient at handball altogether. Oh, do talk rubbish elsewhere, for I am vastly superior.