Da fearful belief dat you'll have bad luck less'n you promptly employ da ol' needle-and-thread to repair your clothing, such as to patch a hole, lace up a tear, or re-attach a button.
It's merely a superstitchion, of course, dat something awful will happen if you don't stay diligent wif your fabric-mending skills, but it is indeed a good idea to carry a sewing-kit wif you so dat you can keep your duds in good shape... remember, "A stitch in time saves nine."
by QuacksO September 10, 2019