A person that over eats. Their big mouth devours everything infront of them. After eating that excessive amount of food they are typically lethargic and have a swolen stomach and blank stare much like a catfish.
Bob- "Did you just see Jamie after she ate those two footlong philly cheese steaks and that large milkshake with extra whip cream!?"

Dan- "Yeah what a Catfish!!"
by lucaduc December 07, 2009
Happy St. Patties Day!
A person who follows another person around. They suck up to that person because the person's social standing is much higher than the catfish's. The catfish is often fat, unathletic, skinny with glasses, or just annoying to everyone around them.
Look at Sebastian following Ryan around, that kid is such a catfish
by raychelha June 03, 2005
Happy St. Patties Day!
A method of fellatio where the woman deep throats the man in a manner that causes her to make a noise similar to that of a croaking catfish.
Yeah, she catfished me last night. It was great. No gagging!
by Joe24 March 07, 2006
Happy St. Patties Day!
A bottom-feading sellout who does anything for pussy. Also see /coward/.
When Kevin, the catfish, tried to cock block his buddies, he got his ass beat.
by Nick June 06, 2004
Happy St. Patties Day!
A catfish is a person whose IQ is at least 200 points lower than his or her body weight in lbs.
The female catfish (beached whale) believed that the hot, happening guy with the 6-pack was desperately in love with her even though they had never met or talked in person.
by honstopinionxxx June 23, 2015
Happy St. Patties Day!
A. A male or female who, when intoxicated, reverts to a primitive state in which they blindly wonder around looking for someone to fuck. Usually these sloppy-drunk animals sift through a series of rejections until some poor, skanky soul gives it up. While in "catfish mode," these individuals aren't thinking logically, and will only react to the prospect of immediate ejaculation.
"Aaron went with that skank to the strip club in the hood just to try and nail her."

Yea, he was tryin to smash with everyone last night.

"Too bad he pissed himself, she was DTF. She left him at her friends place to go fuck her ex."

What a Catfish.
by moneymike69 November 21, 2011
Happy St. Patties Day!
A woman so very dedicated to her work or studies that she begins to have wrinkles on her mouth, reminiscent of a catfish. Can normally be seen in law school, but is full-fledged visible in the legal practice.
Damn, that chick's a catfish
by nadime February 02, 2008
Happy St. Patties Day!