{v. phr.}, {informal} To be plotting and conniving to commit some illegal act or crime. * /"Let's hurry!" Susan said to her husband. "It's dark here and those hoodlums obviously are up to no good."/
{v. phr.}, {informal} To be plotting and conniving to commit some illegal act or crime. * /"Let's hurry!" Susan said to her husband. "It's dark here and those hoodlums obviously are up to no good."/