Buff LA-based, TMZ gossiptard, Peter O’Riordan (above), from Cork, talked this week about singer Cody Simpson (top) and his plans to meet up with Justin Bieber in Ireland.

No wait, come back.

This was BEFORE warning his colleagues that Bieber may get into trouble if he starts boozing in Ireland.

O’Riordan FULMINATED::

“If he mouths off in Ireland man, in a bar, you might be losing your little Bieber, like. I’m dead serious man. If he carries on the way he carries on here, in Ireland – he’ll get battered, like.”

The warning prompted another colleague to UNLEASH:

“Ireland: come for the Guinness, stay ’cause you’re in a coma’.”

Oh yeah.

Them’s fighting words.

Hang on.

Watch here

Previously: You Have Met The Buff Irish Guy Who Works For TMZ?