'I'm reading a book about antigravity. I can't put it ___!' (groaner)

Let's find possible answers to "'I'm reading a book about antigravity. I can't put it ___!' (groaner)" crossword clue. First of all, we will look for a few extra hints for this entry: 'I'm reading a book about antigravity. I can't put it ___!' (groaner). Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.