A phrase that has obtained popular use in areas of the UK containing northerners, chavs, or rural folk. It means "something or whatever", usually used in an inquisitive sense or as a dismissal of lack of knowledge following an observation. Irritating to hear for anyone who speaks realEnglish.
D'you wanna come dahn 'ere 'n watch summint or summat?
He was blatherin' on 'bout jobs or summint or summat, don't really give a fook.
It shot roight over t'hill, loike an alien or summint or summat! Roight fooken frit me.
A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.