trust you, him, her, etc.

trust (one) to (do something)

It is so typically of someone to do something. Trust John to make a big deal out of something so trivial! This tax plan is really outrageous. Trust the government to favor big business over middle-class citizens, huh?See also: trust

trust ˈyou, ˈhim, ˈher, etc. (to do something)

(spoken, informal) used when somebody does or says something that you think is typical of them: Trust you to forget my birthday! ♢ Trust it to rain at the weekend!See also: trust