 So give, advocate, volunteer. Live United. Sign up today at liveunited.org. Brought to you by United Way and the Ad Council. OptUS Kids presents What to Expect When You're Expecting. A teenager learning the lingo. GOAT. G-O-A-T. Acronym stands for greatest of all time. As in spaghetti sandwiches for dinner? They're my fave. Dad, you're the GOAT.