Kouhai 

A "kouhai" is your junior at work, school, or a group. Usually they belong to the same organization as you but they entered the organization after you. A "kouhai" could also be someone who has entered the same "industry" as you but at a later date. In this case "industry" has a very broad meaning, e.g. the entertainment industry, a professional sports league.

A sempai with a kouhai, an elder student with a younger student. Senior (Sempai/Senpai) with a Sophmore (Kouhai).

Kouhai by M. Massacre November 11, 2010

kouhai 

Someone who wants to be noticed by Senpai.

I'm senpai's kouhai... why won't senpai notice me?!

kouhai by Anon006 November 27, 2012

kochaine 

Kochaine is a highly addictive substance derived from the rare and toxic Koch parasite, cousin to thefairly common North American Kochroach. Kochaine is harvested from the manure of obscenely wealthy billionaires. Kochaine abuse destroys lives and frequent use leads to erratic, zombie-like behavior, turning addicts into "koch-heads". Side effects may include selective hearing, partial blindness, delusions of grandeur and criminal impulses.

Scott Walker was so high on kochaine he refused to negotiate with democratic senators, forcing Wisconsin to recall his stupid ass. What a koch-head!

kochaine by Mayadidas March 28, 2011

Kouha 

A fucking sexy character from Magi

Ren Kouha

Kouha by anime shoujo August 24, 2014

Kohai 

A senpai and kohai are generally similar in a lot of ways. They’re usually fairly close in age, and have a similar occupation and social standing.The differences is when it comes to seniority and/or experience.

Two people may both be students at the same school, but if one is a first-year student and the other is a third-year, then that would constitute a senpai/kohai relationship.

Kohai by TenIsCas October 28, 2013

Kohai 

A downclass man or woman associated with trying to get senpai to notice them and will stop at nothing to get their attention.

Kohai:"I just killed everyone in the school so I can assure senpai will notice me"
Senpai:*Doesn't notice*

Kohai by Worship August 12, 2015

Kodhai

The most beautiful girl by heart and looks in the whole frikin universe

Omg Kodhai is an angel

Kodhai by Kodhai August 14, 2018