a banana skin(redirected from banana skin)
Also found in: Dictionary, Thesaurus, Medical.
a banana skin
An action that results in an unforeseen and embarrassing mistake or problem. When Joe applied the latest software update, he had no idea what a banana skin it would be until after his company's entire network crashed.
a banana skin(British)
something which causes or is very likely to cause embarrassing problems The new tax has proved to be a banana skin for the government.