Idiom: not have a leg to stand onOED definition: To have no facts or reasons to support your argument or justify your actionsExample: Jim argued his point as much as he could but eventually realised that he didn’t have a leg to stand on
Method To My Madness
This idiom is thought to date back to the late 16th Century England, and is believed to refer to furniture, in particular, stools. A stool is an item of furniture which is used for sitting on, however, unlike a chair, a stool does not provide and back support. A stool with four legs is the strongest and provides the most stability, with this reducing as the number of legs decreases. A stool with only one or two legs would not be able to be used as it provides no support and would be unable to stay upright. Since then, this idiom has been used to suggest that someone has no justification (or support) for their opinions or actions.