A type of music that is almost like emo but most of it is about relationships and fucking. Almost every word in it is the word fuck. A lot of it is about how beautiful fucking is.

One actual lyric in an fmo song is "oh my god you dick is so beautiful I'm gonna go and cut myself!"
by leonardo draculay January 3, 2021
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Tom: Hey, I heard Jerry got a job and payed his taxes.
Sarah: OMG! He's such a fmos!
by Arnoaz September 24, 2018
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fuck me or something” or could use it like “just fuck me or whatever

used for any situation
you’re so pretty!”

aw ur so sweet! just fmos!”
by Paige69bitch January 15, 2021
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