A really cool German last name. There's only about 12 people with the last name alive in 2010, most live in the United States. Pronounced Gerty-jensen.
Nolife #1 ranked RuneScaper. He is allergic to the sun and can be found next to his multiple computers. He e-flirts in his free time in a failed attempt to get some runescape pussy.
Bob: Hey Mike, did you pull a Gertjaars last weekend?
Mike: Yeh, I didn't leave my computer once!