Microsludge Share definition Flag A nickname for software programs produced by Microsoft, a key member of the Seattle Mafia and global bully. His computer was clogged with the usual Microsludge - Windoze, M$ Office, Internet Exploder, etc. Microsludge by David Blomstrom October 19, 2007 0 0 Get merch Get the Microsludge mug. Buy Now — $32.95 See more merch