The definition of a slob is a messy, lazy and unkempt person.
A messy person is an example of a slob.
Informal a sloppy, coarse, or gross person
Origin of slobIrish slab, mud ; from Scand: see slab
A person regarded as slovenly, crude, or obnoxious.
Origin of slobIrish Gaelic slab, mud, from Old Irish, probably of Scandinavian origin; akin to Swedish dialectal slabb, mud.
- slob′bish, slob′by