Definitions for "Rascally"
playful in an appealingly bold way; "a roguish grin"
lacking principles or scruples; "the rascally rabble"; "the tyranny of a scoundrelly aristocracy" - W.M. Thackaray; "the captain was set adrift by his roguish crew"
Like a rascal; trickish or dishonest; base; worthless; -- often in humorous disparagement, without implication of dishonesty.