sennsei 

A Japanese title used to refer to or address teachers, professionals such as doctors and lawyers, politicians, and other authority figures. It is also used to show respect to someone who has achieved a certain level of mastery in an art form or some other skill: accomplished novelists, musicians, and artists are addressed with the title in this way

Arigato gozaimasu Abe Sennsei

sennsei by Velina Veleva August 13, 2007

Sayonara Zetsubou Sensei

Probably one of the weirdest manga ever penned by the Japanese. Written by the satirist Koji Kumeta, it tells the tale of one Kafuka Fuura, who discovers her teacher, Nozomu Itoshiki, under a sakura tree...

He is hanging by the neck in one of his many suicide attempts. She, being endlessly optimistic, thinks he is simply trying to make himself taller. Needless to say, this is where things get quite strange...and hilarious.

He teaches a class full of strangers, from the hikikomori, to a Disassociative Personality Disorder suffering transfer student, to a stalker, to a ridiculously OCD psychopath. And a normal girl.

The series does not take itself seriously at all, and is probably the darkest, strangest, and most disturbing comedies in existence.

AND I LOVE IT.

I'M IN DESPAIR! THE FACT THAT SAYONARA ZETSUBOU SENSEI HAS ENDED HAS LEFT ME IN DESPAIR! THERE'S NO HOPE! I'M GOING TO GO DIE!

Sayonara Zetsubou Sensei by ARatherPoorDriver October 27, 2010

rusty sensei 

Someone who is a master of all things rusty and has supreme knowledge and experience in this specialized non-procreative area.

I yielded in great deference to the rusty sensei as he waxed eloquently with great depth and breath on bold concepts as the rusty trombone to the rusty ride to 50 shades of rust.

rusty sensei by sbp1029 November 7, 2013

eromanga sensei

An anime that screams "INCEST IS OKAY"

just go watch eromanga sensei...

eromanga sensei by Shouko/Waffles June 6, 2017

Koro sensei 

A name given to the yellow fictional creature in the Anime/Manga Assassination Classroom

I dont want to kill Koro Sensei

Koro sensei by Online Persona March 24, 2019

Filthy Sensei 

The Filthy Sensei is the act of ejaculating a fu manchu onto your partners face then exclaming "My Kung Fu is Best!"

Bryan surprised his girlfriend by giving her a filthy sensei, to which she responded, "Your training is complete, young grasshopper"

Filthy Sensei by Bunny452 December 4, 2011

Google-sensei 

A tongue-in-cheek phrase of referring to Google's search engine. Sensei is a Japanese word referring to a teacher, or someone that is skilled or masterful in something. Attaching it to Google depicts Google itself as a teacher/professor of vast knowledge in a comedic way.

Hey do you know how tall the Eiffel Tower is?

I don't know, but why don't you go consult Google-sensei?

Google-sensei by DeeeFoo January 24, 2016