The four leaf clover is said to bring good luck.
The four Fs clobber involves a lot of muck.
So, what are these four Fs?
Traditionally, the four Fs stand for Female, Fat, Forty and Fertile and this unlucky combination is the old formula for gallstone formation. Sometimes it's not stones that form but muck or muddy slush and this is just as able to cause all the nasty symptoms as well as the stones.
I said traditionally because today, the gallstone-former profile has changed, thanks to changes in diet and lifestyle practices.
Take this for example:
numerous peppercorn -sized gallstones and a markedly enlarged (and slightly photoshopped) gallbladder
The patient, by the way, is female and fat and way above forty and way beyond fertility. However, the number of younger patients, male and female, is rising.
Notice the stones also. These are about the size of peppercorns. So there are varied types of patients as well as varied types of sand/mud/slush/muck/stone.
As for the four Fs, how about changing them to Female, Forty, Fit and Fabulous?