W = T + F

I recently came across an article which used the popular WTF acronym to explain the nature of things. It says that what really happens, which is denoted by W is sum of T(what you want to happen, your wish, desire, plans etc.) and F, where F is a continuous random variable with infinite variability. F can create a positive or negative effect on T and thus determines the outcome W.  Our frustration lies in the inability to control F, which can either act in your FAVOR or it can FUCK up a situation. Simple but interesting indeed!
But, one will more commonly say what the fuck than saying whao, truly fantastic!