On Facebook, as well as on most other social media channels, the word "fse" is both an acronym and a slang term that stands for "funniest sh*t ever," or more appropriately, "funniest stuff ever." A person would use "fse" to show another person just how humorous they find something to be.
It is the funniest movie i have ever seen
that was the funniest thing that ever happened to me
A status on facebook is what are you doing right now or your main message on your facebook homepage.
You do: <3 in the Facebook status.
The 'JCPenny' one was the funniest boy scout skit.
The Hangover is by far the funniest, close second being Pineapple Express!!
Justin Bieber
There are none
Funniest Sh** Ever
canker-blossom
fred