have one's ass in a crack
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have one’s ass in a crack
tv. to be stranded in a very difficult or uncomfortable state of affairs. (Usually objectionable. Have got can replace have.) He’s got his ass in a crack and needs all the help he can get.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.