muck up

Verb

 * 1)  To ruin unintentionally.
 * 2)  To clown around; to have fun, often at the expense of others.
 * 1)  To clown around; to have fun, often at the expense of others.
 * 1)  To clown around; to have fun, often at the expense of others.
 * 1)  To clown around; to have fun, often at the expense of others.
 * 1)  To clown around; to have fun, often at the expense of others.
 * 1)  To clown around; to have fun, often at the expense of others.