Used in social situations as trying to cover something up roughly (and usually failing).
Inspired by <a href="http://twitter.com/sockington">Sockington the cat</a>
2. Mary just punched James in the cock, but she chuffed it by saying she was just making wild hand gestures.
2. Chuff is exactly what it is.
b. Chuff up when I'm chuffin' to you.