What is "wiseguys"

Usage examples of "wiseguys".

One of the girls there was a source of his, she bounced around with a lot of would-be wiseguys and had some good information.

Trigger being used as he had been promised it would be - of would-be bombers killed by their own bombs, of despots deposed and armies deprived of their armories, of thugs and punks and wiseguys stripped of their finely machined blued-steel masculinity.