carn · interjection1
Adapted from the vernacular pronunciation of c'mon, itself an informal variant of come on. The first uses of the term in its extended sense appear to have been amongst Australian rules football fans in Victoria, with the use later spreading to other states and sports.
Carn · proper noun2
* As an Irish surname, reduced from McCarn. * As a Cornish surname, variant of Carne. * As a Dutch, German and Jewish surname, variant of Kern.
Etymology from Wiktionary, CC BY-SA 4.0.