Questions & Answers about Skittentøyet ligger på gulvet, og jeg setter på vaskemaskinen.
Because it’s the definite form of a neuter noun. tøy (clothes/cloth) is neuter, so:
- indefinite: skittentøy (dirty laundry)
- definite: skittentøyet (the dirty laundry)
You normally don’t use an article with the mass noun tøy (you wouldn’t say “et tøy”).
Yes, it’s grammatical, but ligger is more idiomatic because Norwegian prefers “position verbs” for where things are:
- ligger = lies (things lying flat, e.g., clothes, a book)
- står = stands (upright things, e.g., a bottle)
- sitter = sits (things or people sitting)
So “Skittentøyet ligger på gulvet” sounds more natural than “er på gulvet.”