Fuckityfuck is for everybody that wants to say fuck but feel too embarrassed or who write f*ck in text as they can't get themselves to write the full word
It is meant to soften the word fuck with a surprisingly hilarious twist in a Huge Grant style.

when you're hungover as shit after a spending a night drunk as a skunk

A term used to express extreme pleasure or pleasure at a particular moment. Unlike ‘Fuckity Fuck Fuck,’ which displays extreme displeasure. More prefered than 'Fuck' alone due its deep meaning.