NLWU Share definition Flag refers to a person who is no longer with a group, club, clic, etc. It literally means "No Longer With Us" As in someone has died or was fired or layed off. Jim is NLWU he resigned last week. NLWU by birgibit May 1, 2008 0 0 Get merch Get the NLWU mug. Buy Now — $32.95 See more merch
