What is Famfer?
1.
Acronym for Fat Ass MotherFucker, pronounced FAM-fer. Uses as an insult, often when observing the behavior of other drivers in traffic. Can also be used as a verb (to FAMF).
That FAMFer on a cell phone isn't watching where he is driving!
Look out for that car, he looks like he is going to FAMF into your lane!
See