Common Regional Slang Words:
Northeast:
* wicked (meaning very, really) - "That pizza was wicked good!"
* wicked awesome (meaning extremely good) - "That concert was wicked awesome!"
* cah (meaning car) - "I gotta get my cah fixed."
* soda (meaning pop) - "Can I get a soda?"
* grinder (meaning a submarine sandwich) - "Let's grab a grinder for lunch."
* packie (meaning a liquor store) - "I need to stop by the packie."
* scrod (meaning codfish) - "We're having scrod for dinner."
* frappe (meaning milkshake) - "I'm craving a frappe."
Midwest:
* pop (meaning soda) - "Can I get a pop?"
* y'all (meaning you all) - "Y'all coming to the party?"
* ope (meaning excuse me) - "Ope, sorry, didn't see you there."
* hotdish (meaning casserole) - "We're having hotdish for dinner."
* going to town (meaning having a good time) - "We're going to town tonight!"
* Michigan left (meaning turning left across oncoming traffic) - "I almost got hit by someone doing a Michigan left."
* pop (meaning father) - "My pop is coming to visit."
South:
* y'all (meaning you all) - "Y'all coming to the barbecue?"
* fixin' to (meaning about to) - "I'm fixin' to go to the store."
* bless your heart (meaning you're naive or stupid) - "Bless your heart, you really think that's going to work?"
* coke (meaning soda) - "Can I get a coke?"
* sweet tea (meaning iced tea with sugar) - "I love a good glass of sweet tea."
* honey (meaning a term of endearment) - "Honey, can you hand me the salt?"
* reckon (meaning think) - "I reckon we should go home now."
West Coast:
* hella (meaning very, really) - "That concert was hella good!"
* gnarly (meaning cool, awesome) - "That wave was gnarly!"
* dude (meaning a male friend) - "Hey dude, what's up?"
* stoked (meaning excited) - "I'm stoked to go on this trip!"
* bummer (meaning a disappointment) - "It's a bummer that the concert is sold out."
* hella tight (meaning really good) - "That song is hella tight!"
Note: This is just a small sample of common regional slang. There are many other variations and nuances within each region.