a slow, stupid, slovenly person ...1847 Eng. dial.
from Provincial Danish mosle (to be dull or lazy at work)
FIRST DOCUMENTED USE
1847 - Moozles. A stupid sloven. Linc.
From: A Dictionary of Archaic and Provincial Words, Obsolete Phrases, Proverbs, and Ancient Customs, from the Fourteenth Century
- James Orchard Halliwell
"...She's no-but a poor moozles...."
From: A Glossary of Words Used in South-West Lincolnshire (Wapentake of Graffoe)
- Robert Eden George Cole, 1886