Hehe! Some of these slang words are so old they're rarely used anymore. For instance, "chick" is a little outdated...but it's still used by some people--primarily males.
"Chicken" is used more by little children than teens. The popular taunt: "What are ya? Chicken? Buck-buck-buckaw!"
"Flick"? like a movie? I don't hear this word too often...but maybe some people use it.
"Fox" is like "chick"--not used as often as it was 10 years ago, though still sometimes in use (again, primarily by men)
"Gypped" ...a bit outdated--not used by many teens, but not entirely unheard of.
"glitzy"? Never heard this word before. ...I have heard "ritzy" though.
"goovy"?! Hahaha! That word hasn't been around since the 1960s or '70s! If you use this word, people will think that you think you are a hippy or they might think you're old.
"hairy" ...not very common to use that word anymore.
You should be aware that "John" in American English slang also means a "pimp". So, be careful how and when you use it!
"Mum, look there’s a McDonald’s. Can we pop in?": Just an interesting note, "mum" is the Commonwealth English shortened word for "mother," but in American English, the word is "mom."
"split"...not too common a word in American English at the moment. I don't know about Commonwealth English, though.
In addition to "zip" we also have "nada" and "zilch."

Important: A lot of these words on the list are unique to American English and might not necessarily be understood by a Commonwealth English speaker. Also beware of false cognates when going between Commonwealth and American English--for instance, the word "fag" in Commonwealth English means "cigarette" but in American English, "fag" is a rather derogatory term for a homosexual man. There are a bunch of other Commonwealth English words and phrases that if used in the USA might cause confusion or sometimes giggles, and vice versa.

**Just thought you might like to know ;) **