That inhabits a cellar; (Sport, originally Baseball) that has the lowest ranking (or among the lowest rankings) in a league or other grouping; also in extended use.
Origin
Mid 19th century; earliest use found in The Times.
Definition of cellar-dwelling in US English:
cellar-dwelling
noun
An underground or basement room or residence.
adjective
That inhabits a cellar; (Sport, originally Baseball) that has the lowest ranking (or among the lowest rankings) in a league or other grouping; also in extended use.
Origin
Mid 19th century; earliest use found in The Times.