An exclamation used to calm someone down when they are being overly obnoxious or excited about something stupid or insignificant, similar to chill out or relax.
Usage has nothing to do with whether the object of the phrase actually has tits.
Sam-"Jimmy, come ONN, give me a piece of Wrigley's supermint."
Jimmy-"Chill your tits."
Ninth Grader-"Oh my god, those girls are sooo hot, i like the one in blue. Do you think i should go talk to her?"
Eleventh Grader-"Chill your tits, kid, it's just a sixth grade birthday party."
To take something small, that doesn't quite qualify as a theft. Probably from the Danish "skæv" or the Dutch "scheef", both of which are pronounced similarly, meaning "askew, or not quite right'. To change an item's ownership without permission, but only something small and of little worth.
"I skeefed an apple off the neighbor's tree." "I skeefed some chips outta your bag when you looked away." "Don't skeef my chair when I go to the bathroom."
A tight, tangled knot of loose hair and lint that forms inside clothing during the clothes dryer cycle. It typically hides inside garments, causing an annoying lump or a phantom tickling sensation against the skin until it is found or falls out onto the floor during folding.
I was folding my clothes and a huge hair spider fell out onto my hand