Call me juvenile and I know it's probably the correct terminology, but I find it hilarious whenever anyone says that they've broken wind instead of just fart.
Yesterday at work someone said just that and it took all of my strength not to burst out laughing. It's just so twee and toe curling. Why not just say that you've farted? And if that's too strong for you then there's always trump, but even that's a bit to twee for me as well.