The Katherine Heigle Principle 

When an actor turns on the creator/writers/producers of a job that made them rich and/or famous.

Did you see Angus T. Jones bashing Two and a Half Men!?! That's an example of The Katherine Heigle Principle at work.

The Katherine Heigle Principle by JuliaGuest January 8, 2013

Sexy Katherine

Another word for Sexy Kate. A sexy Katherine is a hot girl that typically walks around naked. She can be seen with lots of boys and gets around. Your either a Sexy Katherine's friend or a Sexy Katherine's enemy there is no middle way. She is a loyal friend but she does have the tendency to spill secrets. She can be a huge bitch to all her enemys.

Boy one - "did u see that girl yesterday?"
Boy two - "ye shes a right sexy Katherine."

Sexy Katherine by @winterwolf11 May 4, 2020

Katherine 

Someone who is never happy with one relationship and at the time of my writing has had 14 exes and 3 of which she had at the same time, and broke up with simultaneously

"Did I tell you about my Ex, Katherine?"

"She's my ex too"
"What a Katherine, amirite?"

Katherine by Katherine's ex February 24, 2019

Katherine 

Another doppelganger (like one isn't enough already). At least she's more "lively" than the other doppelganger, Elena (see "Elena"). Knows how to elude her captors, and escape with heels on. Stefan and Damon both loved her once, but the new doppelganger stole away the attention.

Katherine Pierce: The three of us together, just like old times. The brother who loved me too much and the one that didn't love me enough.

Damon Salvatore: And the evil slut vampire who only loved herself.

Katherine by Naenaj Sivraj November 10, 2013

katherine 

a disgusting creature drenched in whale cum

ew you like whale cum, your such a Katherine

katherine by FrickingFrickTard November 25, 2016

Katherine 

A shy, retarded girl that wears glasses

Boy 1: Omg look at the girl with glasses, she looks really retarded
Boy 2: She looks like a Katherine

Katherine by imtheretardedkatherine December 15, 2019

Katherine 

An asshole who will always try to shove something up your ass and abuse you when ever you say something that may slightly touch a nerve. She ain't cute. Also, stop touching me bitch.

Person 1: haha you like old men!
Katherine: *chokes person 1 with nails/hits person 1 with a solid object*
Person 1: Bro why are you a crazy bitch?!?! Back tf up!?

Katherine by katherinekiller65 March 30, 2017