Here's a breakdown:
* Ah: This is an interjection, expressing surprise or a sudden realization.
* Mimir: This could refer to the Norse mythological figure Mimir, or it could be a name or nickname.
* se dice: This translates to "it is said" or "they say."
Possible translations:
* "Ah, Mimir, they say..." This could be used to introduce a story or rumor about Mimir.
* "Ah, Mimir, so it is said..." This could be used to acknowledge a fact or opinion about Mimir.
* "Ah, Mimir, you know..." This could be used to start a conversation about Mimir.
For a more accurate translation, please provide the context of the phrase.