Mitch

v.

Heard in Kilkenny, Mayo, Waterford, Galway, Cork and Kildare

To play hooky or truant from school or work.

In use

I was on the mitch from school today to go fishin' down by the river.

Posh English

I absconded from the academy today, without leave, to conduct negotiations with the fish of the river.

Same phrase, other counties