I think that it is connected with the film Groundhog Day and it’s idea of closed loop where the next day will be exactly the same day. So the groundhog spoiled his day by forgetting to set alarm. In order to fix this he suggests to flip a coin (do random things) until the day end. So, they will celebrate tomorrow (it will be actually the groundhog day again) and it won’t be spoiled.

Groundhog Day is February 2. It is the day when Americans 'believe' that if a groundhog comes out of its burrow and sees its shadow, winter will continue for six more weeks. If the groundhog doesn't see its shadow, spring will come early. It's an old myth/legend from the Pennsylvania Dutch people. In this cartoon, the groundhog doesn't want to come out at all. He suggests the animals flip a coin (heads or tails) and make a random decision. It's really just a bit of fun:o)