Local and colloquial - what are your favorites?

Y'all refers to the plural you in Texas. Using it for the singular is only done when yankees try to make fun of us. If you want grammar, "fixin' to" is the usual phrase for "about to". The one I can never figure out is that some people call every direction you travel "down": I could be going down to Austin, Oklahoma, Tyler, or San Angelo.

On the British Columbia coast, and in the US Pacific Northwest for all I know, there are two words used that I like, both taken from native languages. One is 'skookum', meaning big or powerful, and the other is 'chuck', meaning saltwater or the ocean. So you'd say "that looks like a pretty skookum truck', or you'd say 'his cellphone didn't work after he dropped it in the chuck'.

My grandmother was raised in Missouri in the 1920s and 30s, and some of my favorite things she says is calling the couch a 'daven', (pronounced div-ann), short for davenport. She also calls soda 'pop,' and a cooler or ice chest is a 'pop box.'