E-penis
Short for "electronic penis." Essentially, a rough, abstract measurement of a person's supposed awesomeness or clout in relation to online community activites. For example, someone with a large post-count on the forums is said to have a large e-penis, whereas someone who's had their ass soundly kicked in a debate or an RP is said to have a "shrunken" or "wounded" e-penis. This measurement is almost never applied in exact terms, but rather in relative terms like "huge," "gargantuan," "epic," or "infinitesimal." This is likely due to the fact that the measurement is never taken seriously, and is generally used in trash-talking, compliments, pimping of oneself or others, and pseudo-philosophical discussion.
Of note: unlike an actual penis, it is not necessary for a person to be a man in order to have an e-penis, despite it's silly and competitive nature. All that is necessary is that the person is online, has some degree of respect in the community, and has a taste for competitive silliness.
"And again, it all comes down to who has a bigger e-penis." -- Zemyla "Well, we all know I'd win that pants-down." -- Wolfb3lly
see also: d-penis