ph.

1. 一命呜呼；翘辫子
When someone pops off, they die.

2. 离开；去别处
If you pop off, you leave and go somewhere else.

3. 哇啦哇啦地乱发牢骚（或议论）；情绪激动地乱写
If someone pops off, they say or write something very angrily or in a very emotional way.

1. pass from physical life and lose all bodily attributes and functions necessary to sustain life

e.g. She died from cancer
The children perished in the fire
The patient went peacefully
The old guy kicked the bucket at the age of 102

Synonym: diedeceaseperishgoexitpass awayexpirepasskick the bucketcash in one's chipsbuy the farmconkgive-up the ghostdrop deadchokecroaksnuff it

2. leave quickly