Practice Push

A practice push is when you need to do a large fart, e.g. in a farting competition, and you're not sure if the next fart will take you over the limit into a full blown poo. To perform a practice push you squeeze a fart until it is just about to be released and then relax. If a poo is imminent, then there will be bowel movements and you will feel the poo coming. This gives you just enough time to rush to the nearest loo, which you wouldn't have had the time for if you just attempted to unleash the fart straight away.