Hi everyone, I came across this expression on an episode of The Big Bang Theory (The Apology Insufficiency). Sheldon: "He's responsible for the demotion of Pluto from planetary status. I liked Pluto." Neil: "I didn't actually demote Pluto." Sheldon: "If ifs and buts were candy and nuts we'd all have a merry christmas." I googled it and found the origin of this expression but I can't quite grasp its meaning. Can anybody help? Thanks.