Koi Fish 

(noun) A shy person.

Background: Koi is a homonym with coy, which means shy.

E: Don't be koi fish now. Call me sometime baby.

Koi Fish by metal fingerz June 29, 2009

Koi fish 

A type if colored carp . They're way too expensive and a part of Japanese culture.

What a pretty koi fish

I am a koi breeder

Koi fish by BrineShrimpy December 15, 2017

Koi Fish 

A Koi Fish is a man who gets overly attached to a girl and refuse to leave her alone when she has no interest in him. They generally become psychotic and ruin their friendships because of this. Some of them try to ruin their targets lives.

Girl1:"This guy won't leave me alone and just doesn't stop trying to ruin my life"#
Girl2:"Classic Koi Fish"

Koi Fish by Notamine December 15, 2017

Koi Fish Tattoo 

In Japan during world war II a group of homosexuals got the Koi Fish tattoo on their left arm. Now commonly used in Japan and America as a more verbose way of letting people know their sexual orientation.

Person 1: "My friend just got a Koi Fish Tattoo on his arm."
Person 2: "So how long have you known?"
Person 1: "He has been out of the closet for a couple years now."
Person 2: "Good for him."

Koi Fish Tattoo by Ecanori February 4, 2010

cracked like a koi fish 

While being cracked out of your mind yet still performing. Similar to how a koi fish swim in a small pond cracked out of its mind but still performing.

Som’ shit Brad says

Or
Fuck boi you are cracked like a koi fish.

Or
Bro I was watching reel rock and I was cracked like a koi fish.

cracked like a koi fish by SonOfAMish October 7, 2021

Koi fishing 

When 2 people suck each other's toes 69 style. References those cliché koi pictures where each fish's mouth is by the other's tail.

Those freaks were caught koi fishing in the attic!

Koi fishing by MaverickSquad May 18, 2023

Koifished

Deceiving someone via social media or dating site by posting/sending pics or videos that are very old and
don't represent the way you currently look.

Koi's are the longest living fish. They have been reported to achieve ages of 100–200 years. - Wikipedia

Fuck man I got koifished on POF. That chick I met the other night looked hot on her profile pics, but when I saw her she looked 15 years older and had gained alot of weight.

Koifished by foxaguilar August 21, 2018