Perdy: A slang term for "pretty". Can be used in all instances of the original term. Is not a "ghetto term" or used by thugs, "gangstas", or people of that sort.
apart from the other explanations on here , its also a brand name of paint brushes, extremely fine well made genuine horse hair/ sable hair paint brushes, that are by my standards really good brushes, and can be used to differentiate between some brushes, its usually not the case when using this slang term but does come out like this some times
If you don't know who Percy Jackson is, sit the hell down, and read both of the series,after you're done,you'll join me on the fact that Percy Jackson is the epitome of fictional character badassery