On , Ken Dawe (6:760/4) wrote to All:

 Di> ObFilk:

 KD>What does that mean? Obvious?  Obsitinate? Obtuse?

"Obligatory Filk"  Means the writer thinks most of his/her post has been off
topic and is desperately trying to make up the average so as not to get into
too much trouble.  (BTW - "what is filk" seems to be a perennial, and since
every time more insight seems to be brought to the subject is considered on
topic.)

 KD>And what does "Ose" mean? The only possibility that I can come up 
 KD>with is "Oh! Sussanah!", but that's GOTTA be wrong! Right?

Old Fannish Joke.  What morose is "more" of.  Root of "gross", "lachrymose",
"verbose" et al.