Oikawa is one of the characters on the manga series Haikyuu!! and one of the most loved member of Seijoh team. He is also a asshole, but we still love him.
Person 1: Who’s that shallow dude in your anime?
Person 2: Oh, he’s Oikawa.
by llamaguchi._ September 28, 2020
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All of the girls are always swooning over Oikawa. He needs to be slapped. IWAIZUMI?
by TRASHIKAWA April 12, 2016
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A old ass Uncle,

But hot.

Had Beef with a Hot Setter (Kageyama) And is Gay For Daddy Iwa ( And Yk MAYBE Sakusa and Atsu)
"Yk the Gay Setter?" "Which?" "Fluffy Brown Hair, Half of the Fandom Loves And The other Half Hates" "Oh Yeah! The uncle" "Yes! Him!" "His Name Is Oikawa Right?"
by Takeru Oikawa October 19, 2021
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Verb. Oikawa is another way of saying ‘fuck this up’ or ‘fuck up’ depending on how it’s presented
Iwaizumi:let’s not oikawa this anymore than it needs to be
by Bokutosrightasscheek March 25, 2021
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A flat, door-looking volleyball player from Haikyuu.
Person 1: “Hey, watch out! You’re going to bump into that door.”

Person 2: “What door? That’s Oikawa..”

Person 1: “Exactly-“
by todorokis_teakettle_ October 20, 2020
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