a chemical element that suceeds florine and preceeds neon in the periodic table.
fleenium is special in that it is the only element in the periodic table containing a marshian atomic number. fleenium was discovered and named by Barham local mountain biker Drahcir Marsh, it was named fleenium due to it having an atomic number of fleen. it also has a very unbalanced formula as it has froar protons and flix electrons making it very suceptible to high powered explosions when thrown into Barton Court school pond.
It is also easilly identifieable due to its extremely potent smell. A smell of which sometimes can be liked to that of a fart whilst leening (fleening)
A video game, usually an MMO or mobile game, that claims to be free but gets everyone with the in-game purchases, eventually making more money then they would've for just making the game cost money
Man, I played that stupid freenium game and spent my college fund trying to expand my kingdom.