Out to brunch phrase
Going out to a meal that is eaten in the late morning
A: Where are you going? B: I'm going out to brunch.
She is out to brunch right now.
Said when someone has taken more food than he or she is capable of eating
To eat too much
To eat to the point that you feel full and no longer hungry
If something such as food, drink, or medicine go (right) through (one) like a dose of salts, it is rapidly excreted without being digested.
One must eat to carry out one's responsibilities.