The story
In reference to the Hash Slinging Slasher from the Spongebob Squarepants episode "Graveyard Shift", albeit with "hash" being replaced with "slur".
Etymology from Wiktionary, CC BY-SA 4.0.
slur slinging slasher
slur sling·ing slash·erToday it means: One who occasionally uses slurs often. Full definition →