An insult which indicates that the recipient is a member of society's lowest levels. This may have stemmed from Elizabethean times, when the poorer viewers at a theatre had to watch from the ground (hence their nickname, 'Groundlings'), which had no seats. The wealthier atendees, however, had nice chairs and overhangs, preventing them from getting wet.
Stop stealing from my mailbox, you bottom-dweller!
by Diggity Monkeez January 26, 2005
1. A fish that lives and feeds on the bottom of a body of water; a scavenger that feeds low on the food chain; a bottom-feeder such as carp and catfish.

2. A person of low character, having no scruples; a selfish, conniving and amoral person; a scumbag.
Karl Rove -- political strategist, dirty trickster and all-around bottom-dweller -- is known to some as "Bush's brain."

by Eugenian March 20, 2008
One that prefers anal sex over traditional vaginal intercourse. One that would prefer to poke the stink vs. the pink any chance they get.
Roger is the consummate bottom dweller. He always pokes Rachel's brown eye. I don't think she ever gets it any other way.
by Eaton Holgoode October 26, 2015
The french fries that fall out of the fast food container and end up at the bottom of the bag.
Joe always eats the bottom dwellers before he eats his burger.
by DCDub October 8, 2011
A person who primarily hangs out at dirty rivers bottoms, they might appear to be homeless, but they live with their parents or their sex offender uncle. They drink Pabst Blue Ribbon, or Olde English. The highest education level reached was 9th grade. All their tattoos are homemade. A river bottom dweller's only mode of transportation is a bicycle. They only date girls who are between the ages of 13-16. Watch out for them, they will be the ones doing the hulk hogan pose.
by Lanee June 7, 2015
A term used to describe the bottom of the order in Softball/Baseball with enormous balls in the clutch and a flare for the dramatic.

Used to describe a fearless bottom of the order which supports a phenomenal lineup at the top.
In addition to their regular beast players like Refik who hit 3 HR, and Rajab with his HR, the bottom dwellers, especially Naiem played tremendously well and were the game changers.

Damn, clutch walk off hit Bur. You are the king of the bottom dwellers.
by jams2323 June 11, 2012
A person who primarily hangs out at dirty rivers bottoms, they might appear to be homeless, but they live with their parents or their sex offender uncle. They drink Pabst Blue Ribbon, or Olde English. The highest education level reached was 9th grade. All their tattoos are homemade. A river bottom dweller's only mode of transportation is a bicycle. They only date girls who are between the ages of 13-16. Watch out for them, they will be the ones doing the hulk hogan pose.
by Lanee June 7, 2015