1 definition by carlosfortuna

bite your knob off

To over-charge someone for goods or a service. To inflate a pre-arranged price in an underhand way.

"We'd agreed £200 for the land survey but when I got the bill they'd put it down as £280. Is that normal?

No mate, I think they're trying to to bite your knob off!"

by carlosfortuna October 10, 2011