banana skin

noun

the soft outer covering of a banana
informal something unforeseen that causes an obvious and embarrassing mistake

Word Origin for banana skin

sense 2 from the common slapstick joke of a person slipping after treading on a banana skin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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