Often used by Oxford Dons or wearers of jacket sweaters with leather elbow patches (ironically) to gently inform the speaker their volume of speech is uncouthly excessive.
I'd like to glennbeck Glenn Beck.
I herd dat wit my bad ear!
I'D LIKE TO GLENNBECK ANN COULTER!
I herd dat wit my bad ear - and that bitch is old.
A Die-Hard Who Dat is someone that shows extreme, absolute or complete loyalty for the New Orleans Saints even when they are playing like they did back in the 80's. A Die-Hard Who Dat could also be someone who is a member of The Big Easy Mafia fan club, where "Once You're In..... You're In For Life"
The Superdome is filled with Die-Hard Who Dats. They are the only ones who would show up with them playing like this.