Spaz, jive turkey, groovin', funky, bummer
Gosh I don’t remember it was so long ago.
That was bad! (Meaning good.)
Kick him to the curb.
All that plus a bag of chips.
The two most interesting ones for me were b*ll*cks - which is (almost) a UK version of the American b*llsh1t. I know that there is a similar (sometimes the same) word used in the US, but here it is used slightly differently.
It can mean "nonsense", "I've never heard so much b*ll*cks in my entire life." but it is a useful expletive as well - If you don't want to do something you might well say "B*ll*cks to that!"
Oddly, the British phrase "The dogs b*ll*cks" refers to something that is excellent in every way. (Thought by some to derive from "The Box Deluxe" which was a packing for an upmarket version of a British Toy.)
There once used to be a useful, (and quite funny) wiki page on the word - alas, it has been much cleaned up, but still contains much of interest.
The other word of my youth is g*t (to rhyme with "nit"). It is both an insult and a term of endearment. "You silly g*t" might actually mean that someone is silly, or it might mean that you quite like them.
Due to my height, I was known at one company as "Lanky g*t" - I didn't mind. "Ignorant g*t", on the other hand, would be a call to arms.
Right on! Trippy! Cawabunga!
Grub, grog, let's scarperer, make dust, dung punchers, call it a day, flame, bugger, F'ker. Endless vocabs.
In the UK I hear stuff like this often;
That's bare peak mush (thats really bad mate)
Bun dat (forget it)
I'll chef you (I'll stab you)