Lumberjack refers to Logger, which they mean as in pvp loggers, so "logging" will be considered that you are a Lumberjack :|
Here's the story: So, first, the term was made up by sitomo, and he said in ventrilo: "all people who combat log will be referred to as lumberjacks." Well, it was not paid much attention to. However, one day, I attacked Ndm57dcraft (back when he was a big nub nub) in the PvP arena with a strength pot and devastated him, which made him log almost immediately. After that, we kept referring to ndm as 'lumberjack' and the term became extremely popular. Now, everyone who logs out of pvp, builder or not, is referred to as a 'lumberjack'. (All this happened weeks-months ago). Ndm was pretty angry at first, but then he caught on to the joke and now a lot of people are known as 'lumberjacks'. Occasionally, ndm, some others, and I will bring noob stuff to pvp and attack people such as 3point and log right after as a joke.