Is é Eamonn Ó Mhuireann do fíor?

Someone's questioned
the veracity of Eamonn Ó Mhuireann...
Who the hell are they to doubt
about Eamonn Ó Mhuireann?

Eamonn Ó Mhuireann, son of
the Great King of the North
From the lands where no one stands
more than a moment in heresy...

Who the hell art thou, Whale of Stones?
Art thou stoned enough to stores'f holder
or carry thou too much stones on thy shoulder?
Níl uisce-beatha ar bith fágtha sa bhuidéal ar do shon...

Eamonn Ó Mhuireann,
yeah, that's me!

Hum... me pergunto se seria do fíor or ag fíor, sendo ag não o presente contínuo, é óbvio, mas sim a substantização verbal de fíor...