A school in the Perthshire region of scotland, full of people who wear barbers, like to shoot, chase chavs and generally shove their heads so far up their asses they can see poland.
Affectionally known as "col" - can usually hear the wee fags shouting "come on col..." at functions which they usually lose, (eg First XV rugby v. Strathallan - now theres a school.)

A casual invitation / threat used by an individual that is not afraid of fucking someone up.