1. to describe someone who will usually set your homepage as something dirty like goatse.
2. to describe someone who has performed autofellatio or has a compulsion to show others their pubic hair.
3. to describe someone who has too much Hentai.
1. "Oh man, i just got marben'd by a marben. I haven't felt this sick in months."
2. "I heard him complaining about a sore back, although i'm pretty sure he is a marben."
3. "You know that marben? Well don't go near his video collection unless you like cartoon bondage."