SIO

senior investigating officer

a british police rank rank held by a police officer (DCI at minimum), who leads a major investigation (e.g.:murder)

Who is the SIO of this murder taskforce? It's DCI Peter Banks.
Who's in charge of this murder investigation? DCI Harold Crowly is the SIO. Talk to him.

by UltraDan September 25, 2020

sophia sio 7a

sebastians girlfriend and she thinks sebby's penis

is big, juicy and long

oh you heard of sophia sio 7a? she likes sebastians penis.

by i am someone hahahahaaaa November 29, 2023

[0ihgfesri hefijghdfi sio

something someone types when they are mad at their computer or just bored at school

0ihgfesri hefijghdfi sio

by mokney whipper April 28, 2022

SiO₂

sand; glass; quartz; amethyst; silica; silicon dioxide.

People, go build a SiO₂-castle.

by hydorus shui October 08, 2023