1.  scallywag(n = noun.person) scalawag - a white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest);
is a kind of bad person

2.  scallywag(n = noun.person) knave, rapscallion, rascal, rogue, scalawag, varlet - a deceitful and unreliable scoundrel;
is a kind of scoundrel, villain

3.  scallywag(n = noun.person) imp, monkey, rapscallion, rascal, scalawag, scamp - one who is playfully mischievous;
is a kind of child, fry, kid, minor, nestling, nipper, shaver, small fry, tiddler, tike, tyke, youngster
has particulars: brat, holy terror, little terror, terror

scallywag, n. (also scalawag, scallawag) a scamp; a rascal.

Etymology:
19th-c. US sl.: orig. unkn.