WAFN
Is and acronym for "What a fuckin nigger", said by a famous youtuber pewdiepie in one of the pewdiepie PUBG stream.
This acronym first came up in a twitch chat whenever they mention pewdiepie or some racist joke.
Some random streamer on twitch: *Mention PewDiePie*
Chat 1: HYPERBRUH WAFN
Chat 2: TriHard Pewds cmonBruh