otmfnf 

On the mfn floor

I’m otmfnf rn no she didn’t say that about them folks

otmfnf by LaadyySliimm April 5, 2023

omfnfs 

Something you say when you are in shock, or can’t believe something that is funny

“my cow gave birth to a goat named Sylvia”
“OMFNFS”

omfnfs by hippocritamus May 13, 2018