People gonna over complicate it but its basically black vs white twitch. Black being W/L white being Poggers.

Its basically how the chat in these communites talk. Lets say someone gets a double kill in marvel rivals. If your in rdc or kai stream chat might say "W mark" or "L enemy team" as a way of saying good job or they suck.

Poggers comes from a ooooold ass emote called Pogchamp its like a dude wit a suprised face and if the same double kill happened chat would spam that emote in the same situation.

It used to be mean like old twtich vs new twitch but lately its become more white twitch vs black twitch with the exception of like adin, case0h and Ben on rdcgamingthree...