Adjective describing ones clothing. Means clothing that is comfortable. Clothes that are slump can be anything comfortable but are usually loose and baggy, sometimes referred to as
stoner clothes. Only
girls use the term slump because they post it on
Facebook to show people they don't always dress like a slut. Normal people don't need to tell others they're dressed "slump" because it's basically telling people "hey I'm dressed casually today, isn't that great!?" no it's not. Dressing slump is comfortable and nothing is wrong with it, but showing off being dressed slump is
stupid, generally people should avoid using this term unless you want to be looked down upon.
Matt-"yo John, you dressed
pretty slump"
John-"dude I always dress like this, it's comfortable. Don't use that word, it's
gay."
Matt-"hey Ariana, you're not dressed like a slut today!"
Ariana-"I know I'm soo slump, I like being comfortable over looking slutty, unlike those other
bitches."
Matt-"shut the fuck bitch."