A triger is a three legged tiger.

A triger can mean two things, first it can be a tigger with 3 wheels on its tail. The second, most popular defintion is when you attempt to say the word "tiger", but fail epicallly thus causing you to say "triger". By saying triger you are immediately slapped in the face by Honors English causing you to become unconscious

Triggering an imbecile, ie Trump supporter.

to throw up, vomit

verb. To induce vommiting by sticking one's trigger finger down the back of one's own throat.

jerking on, pulling at or playing with with a penis in order to have an orgasm.