complete fits of silent laughter. used instead of something like pmsl (pissing myself laughing) or lmao (laughing my arse off).
in msnmessenger / aol messenger etc.:
A:iv got a joke for you
B:wow, go for it
A:why did the chicken cross the road?
B:dunno
A:because he felt like it
B:hah! CFOSL! that was hilarious. mental!
A:iv got a joke for you
B:wow, go for it
A:why did the chicken cross the road?
B:dunno
A:because he felt like it
B:hah! CFOSL! that was hilarious. mental!
by fran and christine April 8, 2006
Get the CFOSLmug. in msn or summat:
A:iv got a joke for you
B:wow, go for it
A:why did the chicken cross the road?
B:dunno
A:because he felt like it
B:hah! CFOSL! that was hilarious. mental!
A:iv got a joke for you
B:wow, go for it
A:why did the chicken cross the road?
B:dunno
A:because he felt like it
B:hah! CFOSL! that was hilarious. mental!
by fran browne(with an e) July 21, 2008
Get the CFOSLmug.