@whee is a term found on
MUSHes. It's a result of MUSH
syntax, which puts an "
@" before certain types of
commands. It's usually a mildly
sarcastic term, but can be used sincerely.
Common usage might look something like this:
Starrynight has a Japanese History final tomorrow. @whee!
There are lots of other spoken @-terms, all of which are generally used when OOC.