fatdar

The otherworldly ability to detect fatness in other people. See gaydar.

"Look how zoomed-in and blurred her Friendster photo is. My fatdar is going crazy."

by Hugs_not_drugs April 2, 2004

fatdar

Similar to gaydar, but differs in the way that it allows you to detect a fatty before they have a chance to sit on and/or eat you.

Whoa! Look at that butterbeast. My fatdar is going crazy!

by JB April 2, 2004