Slug Sucker Share definition Flag A word or phrase used to describe a person who prefers to give a blow job to a smaller sized manhood. (penis) Girl One:"I can't see why she's into that guy..." Girl Two: "I know, she's such a slug sucker." Slug Sucker by End of the World March 19, 2010 0 0 Get merch Get the Slug Sucker mug. Buy Now — $32.95 See more merch