oritsuk 

when you wanted to make the remove the first and last letter of your name meme with Saiki K characters but there was nothing for Toritsuka. So you made one yourself.
TLDR: a pervert

Chiyo: man Toritsuka is such a creep.

Aiura: Yup when I talk to people about him to not actually say his name I just say Oritsuk

Chiyo: What's that mean?

Aiura: I just took two letters of his name out.

oritsuk by DudeIJustLikeAnime June 21, 2021

onitsuka 

Kihachiro Onitsuka was a Japanese soldier who after WWII decided that sports would be good for Japanese youth. He therefore learned how to make shoes circa 1949. He then founded Onitsuka Co Ltd. In 1958 he bought the "Tiger" brand. In 1972 they merged with another company called Jelenk and then they decided they needed a new name. So,they found an old latin phrase that said, "Anima Sana In Corpore Sano"; which means, "A soundmind in a sound body". By taking the first letters of each word in the latin phrase you get ASICS, which is the name of the shoe brand.

Now a days Onitsuka's are used alot by the "scene" or "scenester" subcultures, specifically those consisting of indie and hipster styles.

Man 1: Dude, look at that guy with the onistuka's, that's so hardcore!
Man 2: Scene! Onitsuka's are sooo expensive...

onitsuka by SceneQueen December 23, 2005

Onitsuki 

Onitsuki is a popular IGN (In Game Name). It is popular belief that this name stands for Oni (Devil) Tsuki (Moon) in Japanese, however, the name actually derives from the anime Great Teacher Onitzuka. The name Onitsuki combines the names of the 2 main characters Onitzuka & Fuyutsuki, hence Oni + Tsuki = Onitsuki (like Kim + Kanye = Kimye). The name is an ode to the romance that never happened between the two.

That Onitsuki is bad ass in league of legends....
Didn't Onitsuki used to play on that other WoW server?

Onitsuki by Onituski September 17, 2013