bottom-dweller
Lives below surface
A bottom-dweller is a fish or other aquatic creature that lives on or near the floor of a body of water: catfish, flounder, and crabs are bottom-dwellers.
Figuratively, it describes someone or something occupying the lowest position—in rankings, social status, or moral standing: The team has been a bottom-dweller in the league for years.
catfish
Barbeled freshwater bottom-feeder
halibut · loach · goby · sculpin · ray · skate · eel · crayfish · lobster · crab
lowlife
Disreputable, despicable person
- degenerateDecline morally or physically
- scumSurface residue or lowlifes
- sleazeTawdry moral quality
creep · loser · deadbeat · slimeball · lowly · disreputable · unsavory · shady · seedy · underworld
- catfishchannel catfish, bullhead, mudcat, swai, flathead
social/metaphorical status
bottom-dwellerhigh-flyer
Ambitious, successful person
elite · top dog · high achiever · big shot · mover and shaker