When a comment on YouTube says: <# of people who disliked> <what happened/will happen to them because of it> ... that comment is a "disslike". They are very incredibly rarely funny; most are mediocre, at best, yet they receive gratuitous praise.
*Video of "I Can't Stop Googling Myself" by Parry Gripp*
Dissliker: "33 people yahooing themselves.."
*Video of "We Will Rock You" by Queen*
Dissliker: "1798 Justin Bieber's fans, please stay out of here."
*Original Double Rainbow Guy Video*
Dissliker: "2,339 people had single rainbows"
The act of liking something to insult the person who wrote what was liked.
Amy went from "being in a relationship" to "single"
Owen: "Ouch man, that's cold."
Josh: "Yeah man, it's a diss like."