fall between

fall between (two things)

To drop between two things. The baby's crying because her toy fell between the couch cushions. Uh-oh, that letter just fell between the wall and the radiator, where we can't reach it.
See also: between, fall
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

fall between (something and something else)

to drop between things. My loose change fell between the cushions of the sofa. I hope that my wallet doesn't fall between the table and the wall. I would never be able to move the table to get it.
See also: between, fall
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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