brainfuck

i heard about this language a couple of times. i wiki'd it and i guess its for "fun", but whats a "fun" way to use it?

Well, the fun part about it I found was writing a Perl brainfuck interpreter, and then using that as a basis for a completely new language. You may have heard of it - I believe it's called
">++++++[<+++++++++++>-]<+."