To comet a person (i.e. do the comet) means to fart in an isolated area but still near enough to people where you can walk amongst them and the tail end (or comet part of your fart) either still resonates or is still strong enough that they smell it, but the fact that it was you remains hidden because you did not pass wind directly in front of them; allowing you to deny it. The fact that it dissipates quickly also allows you to deny it since most farts stay in the area for a time. This technique should only be used someone you don't like.

the thing that you don’t have when you’re phones percentage is over 20