big of one
Generous of one, as in It was big of Bill to give his brother his entire paycheck. This expression may be used either straightforwardly (as above) or sarcastically, as in How big of you to save the absolute worst seat for me. [c. 1940]
Words nearby big of one
big mouth, have a,
big muddy,
big muddy river,
big name,
big noise,
big of one,
big on,
big one,
big picture,
big rapids,
big road