A new yet unknown phenomena. When a person (usually a lolcow) posted something that was very serious in an extreme manner, the flamming/trolling against these types of people immediately stops and he or she becomes a wtfbull for the rest of their lives. Unlike lolcows, wtfbulls grows an amount of wtf and lose (similar to how a bull grows its horns). Due to this, the said person can cause you to go insane.
Do not approach them, avoid them at all cost and run for your life because you may get hurt by their "wtf" horns.
1. An internet video clip of an epic explosion. Many people use this in case of weegee or some other catastrophic event occuring.
2. A internet meme which people say when some one nterrupts there conversation: like a ninja.
1.
Weegee: You will DIE.
Person: WTFBOOM!!! *explodes*
2.
Person A: So what else u wanna talk about?
Person B: I really don't kno-
Random Noob: HAI THERE
Person A: WTFBOOOOOOOOOOOOOOOOOOOOOOM *explodes*
Online Pseudonym for Carlos Velez. Name is Google-able. Name defined by actions Carlos does. Which astounds many, causing them to say "What the fuck" and or "WTF!"
Person 1: Did he just do that!?
Person 2: Yea he did