2
general::
Phrase(s): lose it
1. Sl. to empty one’s stomach; to vomit. • Oh, God! I think I’m going to lose it! • Go lose it in the bushes. 2. Sl. to get angry; to lose one’s temper. • It was too much for him. Ted lost it. • I sat there calmly, biting my lip to keep from losing it.
McGrawhill's American Idioms And Phrasal Verbs