Also, sorry for double post, but aw yeah, Marisa is taking up a stand! I wish the good yukkuri would do this more so less of them would end up dead. :(
AM2 that phrase is like the Mawisa's "The Great Mawisa", basically each yukkuri has in their "Trash/Deibu/Shithead" Status a notorious Cathphrases that either enchances their arrogance or their selfishness, in the Deibu's case, the pitiful mother line is a pathetic attemp of low blow demmand of sympathy to justify her being given everything she wants, regardless if she leaves the others with nothing.