Top Definition
To take a dump in a book. This leaves a nice surprise for whoever owns the book.
Student 1 - Someone keeps leaving their history book in the best spot in the library to save their seat. It really pisses me off.
Student 2 - Leave them a Croatian bookmark in the section on World War I. That'll teach them a lesson!
by Wind Rain and Lava December 12, 2008
1 more definition
To mark a page in a book by taking a dump on the page and then closing the book on it.
To friend: I was upset with my roommate so I left him a Croatian bookmark in Chapter 4 of his History book. He'll never think of the 100 Years War without remembering that little bookmark.
by Wind, Rain and Lava November 29, 2008

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