pop off

verb
RareNot in standard dictionaries
1

To leave and return in a short time.

2

To die suddenly.

3

To kill someone.

4

To fire or launch (a shot, projectile, or missile), especially singly or in small bursts.

5

To speak frankly.

6

To release flatulence, generally in short rapid succession.

7

To thrust away, or put off promptly.

8

To turn off.

9

To perform extremely well (in a video game or other activity).

#derogatory#informal#slang