mewb
Player who used to be pro or 1337 at something but is now a noob.
You're such a damn mewb.
mewbs
Boobs on cats. When a cats nipples hang down after she gets older. Especially cats that have been fixed.
My cat Pie Whacket has beautiful markings on her fur coat. But she'll never win at a cat show because of her mewbs. Gross!