Mohock
/ˈməʊhɒk/(also mohock)
noun
A member of a band of aristocratic hooligans who allegedly roamed the streets of London by night in the early 18th cent. and were suspected of ruffianism. Hence (more generally): any hooligan or delinquent. Now historical and archaic.
Origin
Early 18th century. Originally a variant of Mohawk, now usually distinguished in form in sense 1.