(n) Boston or New-England based eye-dialect for the term 'ripper', referring to a large party where it is
assumed that party-goers will become intoxicated and
out of control; a party that will be remembered for the damage done to objects, reputations, and
livers
My boy Fred threw this wicked rippah at his folks' house and some
chowdahead got thrown through the pool-house
window!