Expression française : avoir un poil dans la main

What does “avoir un poil dans la main” mean in French?

Avoir un poil dans la main means to be extremely lazy. The picture behind it is absurd and that’s the point: someone so allergic to work that their hand has gone unused long enough for a hair to sprout in the palm. It’s affectionate teasing more than insult, the everyday way the French label a slacker — un fainéant, une fainéante.

Palms famously can’t grow hair, which is exactly why the image lands — it’s in the same impossible-event family as “when pigs fly.” It dates from the 19th century. You’d use it like: Cynthia a vraiment un poil dans la main — elle reste toute la journée dans sa chambre. English reaches for “bone idle” or the gentler “work-shy” for the same idea.