The quarterly update to the OED addressed entries from “must” to “necessity,” as well as adding many new words and phrases to its comprehensive lexicon, including (scroll down to the bottom of the OED page):
bazillion and gazillion – terms thought too technical until recently
bitch-slap – up until now, there was no proper way to describe how to discipline one’s whore
cocksman – hee hee, they said “cock”
crotchless – the politically correct term had been “genitally accessible”
droid – C3PO’s heavy lobbying apparently paid off
gaydar – wrong on many levels
hat hair and hat head – I for one am glad to see the subtle nuance recognized
heli-ski – WTF?
imagineer – is that some Michael Jackson Captain EO thing?
IMO and IMHO – great, as if children weren’t descending into IM grammar hell already
iophendylate – Iodophenylundecylic acid has made the big time!
low rider – OK, I need audio to comment on this one… :-p
napkin rash – dare I ask?
queercore – I had no idea…
shit-eating (noun and adjective!), shit happens, shitload, – and shit, shit-for-brains – Holy Shit!
skanky – now you can describe strippers eruditely
techno-pagan – I have no idea.
Trustafarian – kind of a cool word, actually
warp speed, warp factor, and warp factor two – Trekkies rejoice!
Zorb and zorbing – fun!
There’s quite a mixed bag here, although I shudder at validating some of these entries as “proper” English…