k1d

saying the word Kid in a way more toxic way, basically to show how much you don't give a shit about the chat filter and "anti toxicity" thing or whatever and you just replace the I with 1
Mainly used in games with Toxic comunity

noob: HACKER LOL. GET FUCKING BANNEAD
pro: stfu k1d

Another example:
tryhard when he losses to anotehr tryhard: Fuck off k1d