OHG: Once-Hungry Games, another big RPG, currently run by Tymewalk
M&M: Magic and Mayhem, a RPG run by Wordweaver (but it ended)
DtG:TBGs: Destroy the Godmodders: TBGs
AFiE: Alternate Future in Europe, run by Fares
CoPKMN: Chronicles of Pokémon: The Beginning, one of first more successful Pokemon using RPs, currently one of biggest RPGs (and one where Floofy transited with large experience onto TBGs...), run by Fares.
verflixt! (Tymewalk): A German slang word roughly equating to "darn it!"
JINX (CG started it but it spread): Something said when two users talk at the same time, usually followed by "YOU OWE ME A SODA" or some variant thereof
Блин! (TheHockeyist): Russian word for pancake, usually used as a filler swear word (pronounced "blin")
VERHEXEN! (Tymewalk): German form of "JINX!" (literally curse), usually followed by "DU SCHULDEN MIR EIN KEKS" (you owe me a cookie)
NYEH HEH HEH (Faressain): Random laughing.
GERSH DERN IT (CG): Gosh darn it but lighter.
DAGNABBIT (Tymewalk shamelessly stolen from DGC's comments): Similar to gosh darn it!T
Ninjaed/Ninja'd (most people): When you outpost someone by one second or so.
Kek (cool): used to supplement Lol.
<MEOW> (Smiley): Used to self-censor words.
(curse), (Valar Morghulis) or <hiss> (Faressain): Also used as a filler self-censor word. Curse is self-censor while Valar Morghulis is so-said "All men must die." Actual debut of <hiss> was in TTA, but might eventually replace <curse>.
[bork] (Floofy) - used as filler self-censor word.
Custom Emoticons - used to show feelings (only used and made by the2000)