adj. 1. Poorly built, possibly over-complex. The canonical example is "This is standard old crufty DEC software". In fact, one fanciful theory of the origin of `crufty' holds that was originally a mutation of `crusty' applied to DEC software so old that the `s' characters were tall and skinny, looking more like `f' characters. 2. Unpleasant, especially to the touch, often with encrusted junk. Like spilled coffee smeared with peanut butter and catsup. 3. Generally unpleasant. 4. (sometimes spelled `cruftie') n. A small crufty object (see frob); often one that doesn't fit well into the scheme of things. "A LISP property list is a good place to store crufties (or, collectively, random cruft)."