noun, verb, slummed, slum⋅ming.| 1. | Often, slums. a thickly populated, run-down, squalid part of a city, inhabited by poor people. |
| 2. | any squalid, run-down place to live. |
| 3. | to visit slums, esp. from curiosity. |
| 4. | to visit or frequent a place, group, or amusement spot considered to be low in social status. |
