Pillfart

A noxious cloud of gas expelled from the anus the morning after a mad night out on Purple Hearts.

Doobs, that pillfart was toxic. Get out.

a bit of the Jo Oakley

1) Mentally handicapped
2) Suggesting a serious and irrevocable personality flaw.

You’re mentally slow. You’ve got a bit of the Jo Oakley about you.

There’s something of the Jo Oakley about you.

You’re stupid or thick.

Are you daft? I think there’s something of the Jo Oakley about you.