A harem can be described as having a vast number of lolis and thicc girls at your beck and call. Much like Eren.... boy has half of Naruto amino in his. >~<
Harem is a word that comes to us from the latin language. This word was used to describe the women of the time who were from the getto. Women of this 2005 time frame were used as sexual puppets to service their men with wide open mouths.
-PD: "ShaggyCorman, Please come here, I would love to get on my knees for you!"