Dictionary
Fujoshi Lexicon: anything pairing | jp. 乙女フィルター
Otome filter is a Otaku-slang phrase (Fujoshi Lexicon). The phrase "otome filter" is for a maiden who views the world depicting inanimate objects, men, women, animals, and anything else from a pairing perspective. It presents and represents every object or thing as pairing couples of possibility to the female viewer. It is sometimes referred to fujoshi in a joking manner as the "Rot Filter".
Definition of Otome Filter
1: Anything can be coupled as a possibility.
Sentence
"If you put it through the otome filter you can see what I see. Books are like a maiden and the Bookmark the prince that fits between her pages. It's like they are so in love they are sparkling!"