This threat is identified in TrafficGuard reporting as Rate duplicate click GCLID.

Duplicate clicks result when a Google Pay-Per-Click (PPC) user clicks 2 or more times on the same instance of an ad multiple times within a set time period defined by Google. The same ad is identified using the Google Click ID (GCLID).

These duplicate clicks are generally, although not always, identified by Google and you will not be charged for them. They typically occur when the user right-clicks on the ad, double-clicks the ad, or uses the browser's back button after clicking the ad. They can also sometimes occur when a bot or automated tool periodically crawls the same impression link.

These clicks provide no additional value to advertisers. They cannot be prevented nor do they provide insight into your traffic quality.

Note, Duplicate clicks are similar in nature to Repeat clicks, read more.