From Wiktionary, the free dictionary
þrugl n (genitive singular þrugls, no plural)
- nonsense, gibberish, rubbish
- Synonyms: þvættingur, þvæla, rugl, vitleysa, fimbulfamb
Declension of þrugl (sg-only neuter)
- þrugla (“to talk nonsense; to murmur, to mumble”)