An acronym for jet fuel can't melt steel beams. JFCMSB is a reference to the world trade center "attack" on the twin towers on 9/11/2001. Commonly thought to be actually plotted by Bush and blamed on terrorists so that America could get into the Middle East for control and oil.
"Man... today is the day that my mom died in 9/11, fucking terrorists killed her man!."
"Sorry bro but JFCMSB."
"What the fuck really?"
"Yeah, Bush did 9/11 man."
"Sorry I thought we all knew."
*friend joins ISIS*
To be eliminated from a position of employment as part of a massive lay-off or budget cut. A reference to Secretary of Defense Gates disbanding the entire Joint Fores Command in 2010.
An acronym used for phone texting which stands for "Just Fcuking Call Me". When one is sick of friends texting him/her and just wants them to call instead of texting.