Wiktionary
lost it
vb. (en-past of: lose it)
Usage examples of "lost it".
She wore the medal until breasts grew around it like ordinary miracles, and then someplace, probably on the class trip to Hampton Beach, she had lost it.
Ajor had had no blanket, having lost it during her flight from the attentions of Du-seen.
I lost it when I was eight, and other kids chased me around the playground for no visible reason—.
You have played a rather dangerous game, and it strikes me that you have lost it.
He had the magical Device of Time Journeying with him, except that he lost it.