jackleg
noun
Definitions
A type of drill operated by means of compressed air.
An amateur; an untrained or incompetent person.
A shyster or con artist; a gambler who cheats; a generally dishonest or reprehensible person.
adjective
Definitions
Amateur, untrained; incompetent.
Dishonest, unscrupulous.
Ineptly built or operated; makeshift.