Is it correct or usual to use pejorative adjectives when you want to say good things about something, like in the phrase:
He can do some really nasty tricks with a coin and a scarf
Of course I'm trying to say the tricks he can do are great, everybody enjoys them.
'Nasty' is the only pejorative adjective that comes to my mind and there may be better ones to be used instead - I mean, if that kind of use is really possible.