Lose one's reserve, temper, or self-restraint; do or say something out of keeping with one's position or character. For example, A teacher should never forget herself and shout at the class. Shakespeare used it in Richard II (3:2): “I had forgot myself: am I not king?” [Late 1500s]
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Words nearby forget oneself
Example sentences from the Web for forget oneself
The plan is to stretch it out as long as possible, then probably forget about it, and then suddenly remember it.‘Archer’ Creator Adam Reed Spills Season 6 Secrets, From Surreal Plotlines to Life Post-ISIS|Marlow Stern|January 8, 2015|DAILY BEAST
The speaker conjures up centuries of collective sagacity, aligning oneself with an eternal, inarguable good.Politicians Only Love Journalists When They're Dead|Luke O’Neil|January 8, 2015|DAILY BEAST
And for those on the Palestinian right who still dream of driving the Jews into the sea, they too can forget it.
But for those on the Israeli right who are hoping that this deferred dream will just fade away, they can forget it.
If we go another year without doing one people will just forget what it was.Deer Tick's John McCauley on Ten Years in Rock and Roll|James Joiner|January 2, 2015|DAILY BEAST
On the morning after Ramona's disappearance, words had been spoken by each which neither would ever forget.Ramona|Helen Hunt Jackson
Alone Orlean lay trying vainly to forget something—something that stood like a spectre before her eyes.
Forget it not: for there is no returning, and thou shalt do him no good, and shalt hurt thyself.The Bible, Douay-Rheims Version|Various
She would never forget it; but realizing its gravity, she decided thereupon never to tell it—the dream—to anybody.
She would sometimes gather them passionately to her heart; she would sometimes forget them.The Awakening and Selected Short Stories|Kate Chopin