Carfishing 

When you use a picture of someone elses super cool car and claim it as your own.

"Hey, look at that dude carfishing on IG when we know its not his car"

Carfishing by Samreen182 August 24, 2016

crawfishing 

Backing out of a commitment or situation, especially when it doesn't go your way.

As a crawfish walks backwards when threatened or attacked.

crawfishing by Brad Watkins September 9, 2003

catfishin' 

Purporting to be someone or something you are not on the Internet in order to gain friends, attention, partners, pity, sympathy or money. Named after the faux-documentary "Catfish", Catfishers have been known to post fake pictures of themselves (including but not limited to catalog images), claim to have a dying fiance or mother, or create an entirely fictional version of themselves.

Uh oh, did you see that perfectly posed photo of Donna she posted? That girl is so catfishin'.

Oh man, I heard Northlad's girlfriend is really sick. I sure hope he isn't catfishin' us.

catfishin' by ksmwhat August 6, 2012

Catfishing 

The phenomenon of internet predators that fabricate online identities and entire social circles to trick people into emotional/romantic relationships (over a long period of time).

Possible motivations: revenge, loneliness, curiosity, boredom

The term catfishing was inspired by the 2010 documentary "Catfish."

Gwen was worried that her online boyfriend was a phoney after she saw a TV program about Catfishing.

Catfishing by 2Sweet&Naive February 1, 2013

emotional catfishing

when a fuckboy establishes a connection with you to lure you in and then proceeds to expose their true fuckboy tendencies

I hate emotional catfishing I thought we had something for sure. turns out he just wanted to fuck me

emotional catfishing by anniesnotokay512 July 25, 2019

Carlisling

The act of tricking somebody into listening to Belinda Carslile. The act usually involves creating false expectations but also works quite well as a total surprise. Pre-dating Rickrolling by several years, I first begun this practice by slotting Heaven Is A Place on Earth into random Thrash or Death Metal mix cd's given to friends.

1. Hear that? Yo man, we just got Carlisled.

2. Hey man, I've warned you about all the Carlisling.

Carlisling by SamGreen July 10, 2010

Catfishing 

Hiding who you really are to hook someone into an online relationship using Facebook, Tumblr, Twitter, MySpace or by cell phone.

Guy 1: "Hey so I met this new girl online! She is so hot!"
Guy 2: "Have you ever seen her in person?"
Guy 1:"No, does that matter?"
Guy 2: "Better make sure she's not a catfish.."
Guy 1: "You think she's catfishing?!"

Catfishing by Hope Swan January 20, 2014