He plans to 'thin' (out) the young carrots in the garden. [=to remove some of them so that there is more room between the remaining carrots]
His hair is a little 'thin' on top. = He's a little 'thin' on top. [=he does not have a lot of hair on the top of his head]
The bank's decision to raise rates could be 'the thin end of the wedge'. [=many other banks may also decide to raise rates]
(..) "but we are also smart and strong, and we have a reasonable chance of defeating you." How exactly would that laugh go? That sounds more like, "We are a tall, thin woman who wants to make a coat out of your Dalmatians." Let's remember that Sheldon is still our friend and my roommate. So? (..)2008 TvShow: The Big Bang Theory Title: The Bat Jar Conjecture Season: 1 Episode 13