adjective Chiefly South Midland and Southern U.S.
1. unskilled or untrained for one's work; amateur: a jackleg electrician.
2. unscrupulous or without the accepted standards of one's profession: a jackleg lawyer.
3. makeshift; temporary.
4. an unskilled or unscrupulous itinerant worker or practitioner.
Origin: 1840-50, Americanism; perhaps jack+ (black)leg
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