I tattoo primarily found on white (caucasian) men that, when displayed to minorities stands for the usual "Fuck the World", but when in the presence of other whites it actually stands for "Forever Truly White". It is common with many radical white southern gang members.
Feed The Wombat Can be used to describe an activity that you feel does not need mentioning.
Originated in the online game Final Fantsay Online, by a character named Kitykatt as a response to someone asking what FTW stood for.
Example 1
People Person One: "I collect puke bags and store my freshly picked boogers in them."
People Person Two: "......Ftw!?"
Example 2
People Person One: "Bahaha, my Caps Lock key got stuck before. I WAS TALKING TO PEOPLE LIKE THIS. =D"
People Person Two: "Wtf? O_o"
People Person One: "Ftw? o_O"