Stands for "fecal management system" in the hospital. It is a tube stuck up the anus of someone in the hospital if they are not capable of asking for a bedpan when they need. Used as something derogatory to call a person you don't like by hospital workers.
"I hate that bitch, she is such a FMS."
by SamanthaEmily February 28, 2008
Get the FMSmug. 'Fraid of Missin' Sumthin'
A condition where one is always on the lookout for the next cool thing, rather than enjoying what one has, because he/she is "afraid of missing something."
A condition where one is always on the lookout for the next cool thing, rather than enjoying what one has, because he/she is "afraid of missing something."
Ralph has a serious case of FMS. He's keeps scanning the joint. He can't just chill and have a good time.
by artbabe February 5, 2008
Get the FMSmug. 
Get the FMmug. by O-Lin-Lin April 18, 2021
Get the FMSmug. 
by VodkanLemons July 23, 2005
Get the fmmug. 