The first player starts the game by saying 'fuzzy duck'. The player to their left then says 'fuzzy duck', and play continues round in this fashion. However, at any point a player may instead choose to say 'duzzy?', in which case the direction of play is reversed and the phrase changes to 'ducky fuzz'.
Every time a player says 'duzzy?' the direction changes and the phrase flips from 'fuzzy duck' to 'ducky fuzz' (or vice-versa). Each player may only say 'duzzy?' up to two times in a single round.
The idea of the game is to go round quickly without giving players too much time to think.
If a player makes a mistake or hesitates for too long they must drink, and the game starts again.