be big of (one)

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. A: "Dave's going to volunteer after school, isn't that great?" B: "Oh yeah, volunteering because his crush will be there, that's big of him."

See also: big, of

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