Buzzin

n.

Heard in Waterford, Galway, Sligo, Tipperary and Dublin

In a state of supreme elation and excitement, often following a stroke of good fortune.

In use

I pulled a gorgeous fla last night and I'm still buzzin' like!

Posh English

Having secured the romantic attentions of a most attractive young lady last night, I remain in a state of supreme elation.

Same phrase, other counties