In the movie industry, when a mid- to high-profile actor, actress, or (less frequently) director accepts a project considered far enough beneath them to raise questions about their integrity, they are considered to be slumming it.

There are a couple ways this can pop up. A highly regarded actor that usually appears in dramatic, "serious" works can appear in "low brow" entertainment (e.g. Dame Judi Dench in The Chronicles of Riddick, Marlon Brando in Superman), someone famous taking a role considered damaging to their public image (e.g. Patrick Stuart in Masterminds), or otherwise a highly talented individual accepting a role on a project that they should have recognized was doomed from the start (e.g. Laurence Olivier in Inchon). Money and/or contractual obligation are usually the reasons, but many seem to genuinely want the role.

Typically, an actor or actress that is slumming it will look hilariously out of place in the film. Whether it's because they're horribly miscast or because they turn out to be the only competent element of the work varies from case to case.
Abe Vigoda was really slumming it in Good Burger.
by KingWumpus November 13, 2009
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The Luxury Circle Trailer Park in Jackson, New Jersey... home of Hoop, the Mountain Man
There is a big sign that says "slum" in front of the luxury circe trailer park.
by heb August 31, 2005
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A more formal name for the ghetto.
It's hard to believe that some people ACTUALLY take pride in living in the slums. They sure must love the poverty, violence, and poor educational system of such an environment.
by AYB September 24, 2003
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In an online game, a highly rated expert player joining a game against newbies and low-ranked players may be said to be "slumming".
Hey Power Player, what are you doing in our low level game? Slumming?
by Caprico October 21, 2018
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n. The act of touring through the poor side of town to gawk and make fun of the inhabitants there, usually with a group of one's friends. Notably an activity of insecure rich white kids.
Matt: Hey Jimmie, you wanna cut out after school in my dad's Hummer and do some slumming?

Jim: Hell yeah! I love knowing that there's plenty of trash out there to keep the burgers flippin'.
by Carl Willis July 22, 2004
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Descriptive of anything displeasing, of low quality, unskilled, unattractive, or lazy.

In a general sense, it can be used to describe anything in a negative way
1) "Jamal was slummin' at hoops today."
2) "My test grade was so slum! I got an F"
3) "The paint job on that car is so slum!"
by Anonymous March 25, 2005
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a severe intoxicated mindstate; the point of intoxication where fantasy becomes reality, whilst stepping outside of your usual realm
Joe:Man you are drunk as hell man

Bob:Man i feel drunker than drunk bro

Joe: bro, you know what that means?

Bob: No, What?

Joe: You are SLUM bro
by VanillaNice October 12, 2011
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