As nouns the difference between slob and sluggard
is that slob
is (informal|disapproving) a lazy and slovenly person while sluggard
is a person who is lazy, stupid, or idle by habit.
(informal, disapproving) A lazy and slovenly person.
(derogatory) A lazy, obese person.
A person who is lazy, stupid, or idle by habit.
A person slow to begin necessary work, a slothful person.
A fearful or cowardly person, a poltroon.
* See also