The act of grouping people you hate together as if they were all the same person; usually giving them all the same disparaging handle or slur.
Synonyms for Lump-Summing
On this page, you will find 30 slang terms related to lump sum. Some of the top words include: Hateration, shit stain, antiyouism, suck dicks in hell, playa hata, and 25 more.