a form of address, usually to an unknown male or a superior. An informal form of sir
Right away, guv... I mean, sarge.
Guv is sometimes used to address a man, especially a customer or someone you are doing a service for. Hey, thanks, guv. used by men, as a way of talking to a male customer in a shop, taxi etc (guvnor)
{i} boss (unofficial term of address for a boss that men and women use); expression of address for man used by a boy or younger man (derived from "governor")