The multi-clicks graph is a great way to see how many times your leads are clicking.
Usually, we see that normal visitors only need a few paid ad clicks for a conversion. However, spammers will click many times with no intention of buying. This table allows you to set a Click Fraud Threshold that blocks all the spammers without jeopardizing your genuine traffic.
For example: If 95% of your traffic is only clicking 2 times on your paid ads, there is no reason to allow users to click 10 times and waste your budget. In this case you could set your threshold to 3 clicks in 30 days to block anyone that is clicking excessively.
The Multi-Clicks graph is available in your dashboard under Fraud Analytics>Multi-Clicks.