Welcome to English in a Minute. This is your thumb. But what could it possibly mean if
you have a green thumb?
Dan, thanks for taking care of my office plant while I was away.
Oh, yeah, about that. I might have over-watered it. Or under-watered it.
Well, I haven't been to my desk yet, but I'm sure it's fine. Well, actually... You killed it!
Hey, I never claimed to have a green thumb.
If you have a green thumb, you have a special ability to make plants grow and keep them healthy.
In Dan's case, he seems to be especially good at killing plants.
And that's English in a Minute.