http://en.wikipedia.org/wiki/Mosh_pit

Maybe she would just like to learn about them. Is there a problem with that?

Thank you @cctron for the link! It helped considerably! I don’t know what @beast said, and I don’t think I want to…
@Eambos, you’re right, I did, thanx!

All I asked is why you’re asking so many mosh/concert questions?

@beast: Your original question was “What’s with all the concert/mosh pit questions from you?” which is a little more insulting than the description you just gave. If you’re not giving a helpful answer, then don’t answer at all.

Origins of the term
Snorkly Tin Tong and H.R. (Paul Hudson) of the Washington, D.C. area band Bad Brains, regarded as a band that “put moshing on the map”,[5] were partly responsible for the coining the term. Due to their affected Jamaican-accented pronunciation of the word mash in their lyrics and stage banter, fans in D.C. heard this as mosh instead. [6] During the emergence of the American hardcore scene, the dance was frequently spelled mash but pronounced mosh, as in the 1982 song “Total Mash” by the Washington D.C.-based hardcore group Scream. Later, the term began to appear in hardcore fanzines of the time with its current spelling. The Song was made more popular in the mainstream due to East coast thrash metal band Anthrax’s song Caught in a Mosh.[7]
[edit]

via fluther

Sorry, I realized ccatron already linked to that. I meant via wikipedia not fluther too.