The amount of octane in your cock.

verb.

The act of tampering with the odometer of a vehicle to make it appear that the vehicle has not travelled as far as it really has. This tactic is often employed to sell a vehicle for more than it is actually worth.

adj.

A contraction of the words 'fucking ridiculous'. Often used when just 'ridiculous' simply isn't enough and injecting a swearword somewhere is required to convey the message properly.