Wiktionary
stand-up guy
alt. (context informal English) An honest and straightforward man of good character n. (context informal English) An honest and straightforward man of good character
Usage examples of "stand-up guy".
We designate this victim as a 'stand-up guy' by the simple expedient of sitting down around him.
He said you were a stand-up guy and old Garber always swore by you, which makes you pretty much OK as long as this generation is still in harness.
He was here to learn, and to establish his bona fides as a stand-up guy.
You can help yourself by being a stand-up guy and taking your punishment.