Definition of muck-up day in English:

muck-up day

noun

Australian informal

An end of year celebration for school students, especially those in their final year.
he spent muck-up day squirting people with a water pistol
Example sentencesExamples
- "South Australian Police are urging students to act responsibly this muck-up day and ensure their celebrations don't get out of control," she said.
- While security guards will patrol some schools this week to deter muck-up day pranks, most principals say the wild and occasionally criminal antics of previous generations are largely a thing of the past.
- For most, muck-up day is now a memory and exams are approaching, followed by results packages, first-round offers, and then life on the other side of high school.
- I didn't do it again until "muck-up day", even though we were warned not to do anything.
- With Muck Up Day looming, there are images splattered across the news of hooligans trashing the streets.
- I vowed we would never again have a muck-up day.
- Many years ago at our muck-up day, we managed to carry a teacher's Mini into the school hall, wrapped it, and raffled it.
- When some year 12 students at my school decided to flood a teacher's car, Muck Up Day became a Police Investigation Day.
- What happens on muck up day often reflects what's happened in the school throughout the students' time there.
- Muck-up day has long been associated with flour bombs on the teachers' cars or chucking water bombs and shaving cream at unsuspecting junior peers.

Origin

1960s: from the phrasal verb muck up in the Australian sense 'misbehave' (see muck).

单词	muck-up day
释义	Definition of muck-up day in English: muck-up day noun Australian informal An end of year celebration for school students, especially those in their final year. he spent muck-up day squirting people with a water pistol Example sentencesExamples "South Australian Police are urging students to act responsibly this muck-up day and ensure their celebrations don't get out of control," she said. While security guards will patrol some schools this week to deter muck-up day pranks, most principals say the wild and occasionally criminal antics of previous generations are largely a thing of the past. For most, muck-up day is now a memory and exams are approaching, followed by results packages, first-round offers, and then life on the other side of high school. I didn't do it again until "muck-up day", even though we were warned not to do anything. With Muck Up Day looming, there are images splattered across the news of hooligans trashing the streets. I vowed we would never again have a muck-up day. Many years ago at our muck-up day, we managed to carry a teacher's Mini into the school hall, wrapped it, and raffled it. When some year 12 students at my school decided to flood a teacher's car, Muck Up Day became a Police Investigation Day. What happens on muck up day often reflects what's happened in the school throughout the students' time there. Muck-up day has long been associated with flour bombs on the teachers' cars or chucking water bombs and shaving cream at unsuspecting junior peers. Origin 1960s: from the phrasal verb muck up in the Australian sense 'misbehave' (see muck).
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