slob
n.a person who is very messy and does not care about keeping their clothes or home clean. You use this word to describe someone who is lazy about their appearance or their living space.
n.a person who is habitually messy or untidy in their appearance or surroundings. Informal and often derogatory in register.
“He is such a slob that his room is always a mess.”
“After living with a slob for a month, she decided to move out and find a roommate who valued cleanliness.”
“The protagonist is portrayed as a charming but lazy slob, whose lack of personal hygiene eventually becomes a source of tension in his professional life.”
From Irish slaba. Compare slobber, which is of Germanic origin.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.