At either end of the social spectrum, there lies a leisure class. A catfish is a person who simultaneously lives in both--for example, eating corn dogs in a Porsche, or drinking champagne while homeless.
Look at that dirty rock climber with a Makers and soda in a crystal tumbler--what a catfish!
By Peter
Someone who pretends to be someone or not using facebook or other social media outlets to to create false identitys.Particularly to pursue a deceptive online romance.
Internet person: Hey wanna meet up at central park? You:SURE! Internet person: HEY BITCH. You: HEY YOUR A CATFISH!
By waterdude125
A distorted version of the italian "capisce", meaning "do you understand?". First used in the Simpsons.
If you don't shut up, I'll kill you. Catfish?
By Hugga
A male who attempts to seduce his friend's previous lovers. Will go out of his way in any means to peacock himself as a better person, just to snatch up any scraps that might be left. Typically will use social networking as their resource for targets. A genuine bottom-feeder.
Did he really just friend request your wedding date? What a Catfish! I heard he told my ex that he would never treat her like I did... That Catfish sure loves his scraps.
By hopscotch hooligan
Somebody who uses a fake profile, photos, and personality and pretend to be someone they're not, to fool people or a specific person over social media.
He used the profile of 14yo "Billy" to cover up the fact he was a 50yr old catfish.
By sherleec