Instigator

[PussyCat]

a person who escalates a situation.

[Becky]

Someone who brings about or initiates something.

[Little_Girl]

A blow up alligator; short for instant gator.

[Tina]

type of person that gets information from people by overhearin wat they say ...and then tell their bestfriend

[Tanya Shivari]

Bunty, officially known as the instigator.

[Rihanna]

Someone who outdoors a [kiss ass] at what a kiss ass is known for, to the point it isnt called [kissing ass] with an [instigator], its called pleasing or even claims of slavery by the instigator against the other person.

[Luis Fok]

What someone [claiming] to be [a shark] [usually] is.