Idiom:  Slip Through One’s Fingers; used as a
verb.

Example:  

“Even though the police had been thoroughly searching the
area, the jewel thieves somehow managed to slip
through their fingers and escaped the area.”

Meaning:  Slip through one’s fingers means to
escape from someone or to elude capture or control.  In this example, the police had failed to
capture the jewel thieves.  By narrowly
escaping capture, the thieves had successfully avoided being caught by the
police.  This idiom can apply to any
situation where somebody is trying to avoid being caught.  This idiom is used as a verb in this example.

This idiom is from the LSI book “The Idiom Advantage –
Fluency in Speaking and Listening,” which is used as the primary Idioms textbook
in LSI’s Advanced Conversation classes.

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