Top 10 Year 12 Muck Up Day Ideas That Won’t Get You Kicked Out

A collection of 10 of the best ideas for Year 12 Muck Day out there!
Guaranteed to make you laugh and enjoy your last day of school.

Muck up day has been a rite of passage for the majority of year 12 students throughout Australia for generations. Unfortunately, some schools have cancelled this historic tradition due to the nature of some pranks; however, other Australian high schools remain cautious.

No doubt, we have heard stories from previous years about the craziest and most bizarre year 12 muck up day pranks, ranging from quirky and unusual, to slightly insane and over the top. These days, schools are starting to crack down on muck up day pranks to ensure they don’t get out of hand.

Nevertheless, we have compiled a list of muck up day ideas that are not overly crazy or bizarre – but could raise a few eyebrows if done irresponsibly, or without your school’s permission. 

Silly String! A classic of the year 12 muck up day, but watch out, this will get messy very quickly. All you have to do is buy a few cans of silly string at Big W or a local party store and spray until it’s all finished. Or until you get told off. Gather everybody together with silly string to do some old western shootouts to crown an ultimate winner. Alternatively, see who gets sprayed the most but make sure it’s on the oval as you are less likely to be told off than running around the school classrooms. 

A very challenging muck up day activity to do, but with endless possibilities. Depending on your school and how hard it is to get to the P.A. system, this may have to be a comprehensive plan. However, if you do manage to get some P.A. time, you could play a favourite song, tell stories or give shoutouts to funny moments or memories that have occurred throughout your schooling time.

If you’re seeking permission for this activity, it may be a good idea to prepare a speech or script. If teachers are aware and can monitor what you say and how you say it, they are more likely to say yes. 

Another all-time favourite, you can flex your creativity with Gladwrap! The iconic wrap has been used around doors and walkways to confuse and stop people from passing through certain areas of the school. It is a relatively harmless activity that is hilarious to witness as it confuses any person who cannot see it coming. The places people are less likely to see, such as around sharp corners, would be ideal when setting this trap.  

Given that the last day of school is usually during the start of summer, what a great idea it is to get out the water bombs/balloons/guns and have a good ol’ water fight. Prepping can be done early in the morning, and by lunchtime, you’ll be ready, and all sorted to rain chaos on anybody!

The school toilets and bathrooms are boring, so why not spruce them up with a bit of bubble bath foam or bath soak? A simple yet effective muck up day idea, any body of water around the school grounds will do such as a school fountain. Another approach could be the school swimming pool if there is one, but that may be a bit harder to explain or clean up later.

This prank is very annoying and frustrating to deal with, so a perfect idea for any year 12 muck up day. Buy a bunch of zip ties or cable ties and put them around and on anything you see. Tried and tested favourites include lockers, doors, bikes and of course, scissors. 

Hear me out. Set up some gnomes or rubber ducks and place them as if they were in real-life scenarios. For example, eating lunch at the cafeteria or in the corner of classrooms taking notes. Either way, place them in hard to reach places so that you can admire the gnomes or rubber ducks from distances for the whole day.

A quick and easy game. Before class, you and your best friends can allocate one other a saying or phrase that has to be said to the teacher at some point in class. You cannot laugh while saying the phrase and if your friends do, then they lose. It is better if this phrase or saying is not rude but very random and quirky.

Trivia is a great way to bring up school memories and moments by testing classrooms with a Kahoot or quiz. It is a great way to reflect on your time at school together – but most importantly, to humiliate others.

The Flash Mob is a classic that cannot be ignored. Pick random classrooms to walk into, do a dance or skit then leave like nothing ever happened.

So, the end of high school is approaching. Browse the courses out there, and get some inspiration for your next steps.