Here are 5 common English slang words. Remember that slang is very casual and should only be used in informal situations. These words are usually used by young-adults. I'll let you decide if you are too old to use them!
To do something at high speed or recklessly (British English only):
"I caned it all the way down the motorway. I've never driven so fast."
To drink or eat something quickly and completely:
"I can't believe you caned that whole cake."
To relax. Chill can be used as a verb and chill out as a phrasal verb. Both have the same meaning:
"Let's just chill out on the beach while the weather's nice."
To treat someone with disrespect / to disrespect someone; to insult someone:
As a verb: "I don't think you should of dissed him in front of everyone. He looked really upset."
As a noun: "That was a big dis. I wish you wouldn't dis people like that."
To steal (Mostly American English):
"Someone lifted Sarah's purse from her bag."
Like cane, it is used when you drink something quickly. Often used to describe finishing a beer in one gulp (British English only):
"Hurry up. Neck your beer and let's go!"
Link: British English - 10 words you need to know