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King-side castling or short castling, a move in chess consisting of moving the king two squares toward the king-side rook on the same rank and then moving said rook to the square the king passed over. The move cannot be performed if the player is in check, or if the king or the rook in question has already moved. King-side castling is notated O-O.
1. e4 e5
2. Nf3 Nf6
3. Bc4 Bc5
4. O-O O-O
O-O by ronnosexual August 12, 2022
Related Words
o.O o_O \_( o.O )_/ o,o O///o o/_\o o.o gold o.Oa o.Ozil .o.o
O.O. or Oratory Omniscience is the ability to predict what someone is going to say based on having diverse knowledge in a variety of subjects.
Battle-rappers and improv comedians have a high level of O.O., no matter what you say to them, they will always have a snappy one-liner or roast that destroys you!
O.O. by Lancelot Du Lac IV January 19, 2023
Look a surprised little face with a silly mouth. Used to show how surprised you are in a dignified way.
P1. Terrionicasulobo is cheating on you with tomminopotim.
P2 (O.O) she is?
(O.O) by Braedenater April 3, 2023
kaomoji discord pedophile who grooms and extorts little boys and old men
"Hey, look! It's o_o (o underscore o), I'm scared."
o_o by 0_000000 April 18, 2023
i'm gonna skullfuck u ò.ó
ò.ó by CarkyAmster September 4, 2023
An emoticon intended to appear as a blushing person, the 'O's being eyes and the slashes (///) being the blush, similar to how it's represented in animes and cartoons.
It can mean someone is flustered, embarrassed, and more things associated with blushing.
This emotion can also be shown as O\\\O, O\\O, O//O, O//o, O\\o, and more similar variants.
Person A: Do you have a crush on him!?
Person B: Ehmm. O//O

Person A: I'm pretty sure Jason heard about what you did before you sobered up at the party last night.
Person B: Oh god. O///O. Kill meee
O///O by Dontmindtherotnmold July 22, 2025