hold mouth the right way

hold one's mouth the right way

Fig. do something very carefully under optimal conditions. It was a tedious task. If I didn't hold my mouth just the right way, I wouldn't be able to do it.
See also: hold, mouth, right, way
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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