be big of (one)(redirected from be big of you)
be big of (one)
To be noble or commendable. This phrase is often said sarcastically. Wow, you're actually going to spend time with your brother tonight? That's big of you. It's big of you to reconcile with people who have wronged you in the past.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.