The phrase "a loose string" is correct and usable in written English.
It can be used to describe something that is not tightly secured or is hanging loosely, often in a literal or metaphorical sense.
Example: "As I was sewing, I noticed a loose string hanging from the hem of my dress."
Alternatives: "a dangling thread" or "an untied cord".
You know, when you have a loose string hanging off your clothes.
She wears tiny glasses on a loose string, and when she sits down to talk, she says that she is all ears.
Nowhere in the world is this threat more immediate than in the Marshall Islands, a loose string of more than 1,000 small islands a short plane ride southwest of Hawaii.
Hungarian violinist Robi Farkas and Scottish pianist Brian Kellock dazzled with good-humoured virtuosity, drawing on classical favourites, standards and literally abrasive interlude (on Gypsy Swing) when Farkas tunefully rubbed a loose string attached to his violin.
The Arabs called the constellation Alphecca (a name later given to Alpha Corona Borealis), which means "separated" or "broken up", a reference to the resemblance of the stars of Corona Borealis to a loose string of jewels.
Wearing shorts is a good idea because tampon users can have a loose string.
Trim off any loose string so you don't get string in your ear when you use your headphones.
After a slow winding second season that sometimes seemed more preoccupied with stand-alone episodes than pushing forward the main plot, Atlanta's finale tied up all loose strings with an epic closing scene in its season finale episode, "Crabs in a Barrel," that was truly one for the books.
After each minute-long pitch, the panel will conduct a quick Q&A to tie up any loose strings.
If you see any loose strings that are hard to remove, a pair of tweezers might be helpful.
Remove any loose strings.
