Brown is just a word that can replace anything.
- "What the hell?" would become "What the brown?".
- "That video was shit." would become "That video was brown".
- "I am so fucking mad right now." would become "I am so browning brown right now".
While playing games, the Creatures (mostly Sp00n), frequently used the popular and overused internet meme "U mad?". The Creatures then started saying "U(word)", like "Utree?". Then Sp00n said "Ubrown?" and the rest is history.
The term is not used by the creatures anymore, only refrenced every once and a while. Kootra mentioned in a Q&A that the word had been sort of overused. He thought that it started to get kind of annoying.
- People have thought that 'brown' is a racial slur, but it is confirmed that it isn't.
- "What the brown?" has been said by every Creature
- The Creatures sometimes replace the words or parts of a song with "brown" to avoid copyright infringment, which is a running joke with the Creatures.
- In TreeTopia, the Creatures have said "What can brown do for you?"