carn

A rounded or conical heap of stones erected by early inhabitants of the British Isles, apparently as a sepulchral monument.

A pile of stones heaped up as a landmark, to guide travelers on land or at sea, or to arrest attention, as in surveying, or in leaving traces of an exploring party, etc.

A cairn terrier.

Come on.

An exclamation of support or approval, usually for a sporting (football) team.

“1956 September 10, "Carn the Magpies!", The Argus”