Symbol used in internet conversations to denote a mythological being called a Unicorn (aka Uni). It is often believed that Unicorns do not exist or that the acquisition of a Unicorn is impossible, however the reality of experience has shown contrary evidence. Should one be fortunate enough to come across a Unicorn it is important proceed with extreme caution because the path to Unicorn companionship is long and difficult.
by papichampu October 28, 2010

by pp man 69 February 11, 2020

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
2. Nf3 Nf6
3. Bc4 Bc5
4. O-O O-O
by ronnosexual August 12, 2022

S. C. H. O. O. L.
by Bookworm of the dictionary April 17, 2018

zarbingzorbingstriozbrinzopringoproshagzharland-o-ketcukz-o-zazolazoingzorbiniozingorininilazzingrombingashjiklopqwasems are my favorite gun sub-type! The corn really hits!1
by Qpwoeieurythdbsjksaodxnshcvhjd October 17, 2021

by heylookunderthere☜︎ September 22, 2023

On A Good One
Matt is O A G O he has been drinking for two days straight. . He is On A Good One. Watch out Mom is O A G O she is looking for any reason to complain.
by TWSD May 13, 2022
