simple past tense and past participle of have another think coming

The application of logical principles, rigorous standards of evidence, and careful reasoning to the analysis and discussion of claims, beliefs, and issues.

It is better to do something oneself than to rely on others to do it well.

(informal) Something that is conventionally accepted as good beyond doubt.

The quality, condition, or character of being a thing.

(idiomatic, colloquial) Used to introduce the main point or issue.

plural of thinking distance

The distance travelled by a vehicle between the time that the need to brake is perceived, and the time that the brakes are applied

(idiomatic) anything at all

(sequence) Used to introduce an additional item in a possible sequence