A senior prank  is a type of organized prank pulled by the senior class of a school, college, or university to cause chaos throughout the institution. The pranks are usually carried out at the end of the senior school year as a going away mark on the school, and in some cases have become something of a tradition . This is known as muck-up day in Australia and the United Kingdom .
A senior prank , also known as muck-up day in Australia and the United Kingdom., is a type of organized prank pulled by the senior class of a school, college, or university to cause chaos throughout the institution. The pranks are usually carried out at the end of the senior school year as a going away mark on the school, and in some cases have become something of a tradition .
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, also known as muck-up day in Australia and the United Kingdom.,
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. This is known as muck-up day in Australia and the United Kingdom