What's it with "bashment parties"?

[severin]

Hey,
(I don’t think this question is worth posting it in General Questions.)
A friend of mine recently mentioned bashment parties and I know that they happen to be in basements. So is it just a spelling mistake or is it derived from abashment???

My friend has no clue and neither do I!!

Ciao
Sev

[Zebra]

I’ve heard parties refered to as a ‘bash’.
I would guess that is where the new word comes from.