lose one's temper
Also, lose it. Give way to violent anger, lose self-control. For example, When she found out what Ann had done, she lost her temper, or He arrived without that important check, and then I just lost it completely. The first term dates from the early 1800s; the second slangy locution dates from the mid-1900s.
Words nearby lose one's temper
lose one's lunch,
lose one's marbles,
lose one's mind,
lose one's nerve,
lose one's shirt,
lose one's temper,
lose one's touch,
lose oneself in,
lose out,
lose sight of,
lose sleep over