[quote=@NuttsnBolts]
So cause I'm dumb. What's PK and TPK?

It might help if you actually inform people what they are before you abbreviate the words. 
[/quote]

A PK is a Party Kill or Player Kill where you kill someone on your own team. It's a term typically used in tabletop RPGs.

A TPK is when the whole darned party dies.

In this context, folks are being asked to talk about any times where they've wiped out a party member or the whole party, presumably by accident. You can also, in this context, be talking about forum RPs, not tabletop games, but I reckon both are good topics for discussion.

All I'll say about me PKing people is this: the next time you think a party member is being murdered in a bathroom by the bad guys, don't NOT look in there because someone makes a fart joke.