Idiom: Rubber Check

[Niffi]

Business English Lesson, Advanced Level

ESL/EFL Test #347 "Business Buzzwords: Con Men", question 1

Connie tried selling her family's camper on an Internet auction site, only to have a con man make off with it while sticking her with a ......... check -- the buyer sent a check for $10,500 and sent a driver to pick up the camper, so Lang turned it over, but two weeks later found out the check had bounced.

(a) paper
(b) plastic
(c) rubber
(d) vinyl

Business English Lesson, Advanced Level

ESL/EFL Test #347 "Business Buzzwords: Con Men", answer 1

Connie tried selling her family's camper on an Internet auction site, only to have a con man make off with it while sticking her with a rubber check -- the buyer sent a check for $10,500 and sent a driver to pick up the camper, so Lang turned it over, but two weeks later found out the check had bounced.

Correct answer: (c) rubber
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why?

Niffi

[Mister Micawber]

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RUBBER CHECK is an idiom.
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Native English teacher at Mister Micawber's