Last modified on 25 December 2014, at 19:37

muck up

EnglishEdit

VerbEdit

muck up (third-person singular simple present mucks up, present participle mucking up, simple past and past participle mucked up)

  1. (transitive) To ruin unintentionally.
    The terrorists have really mucked up our holiday plans.
  2. (intransitive) To clown around; to have fun, often at the expense of others.
    It's the last day of school and everyone is mucking up.

Derived termsEdit