SIAP

Sorry If Already Posted: Used to preface a new topic that may have been posted before on an internet forum.

SIAP: Just saw "The Dark Knight"; It was amazing.

by Kneel before Doug August 14, 2008

SIAP

SIAP stands for "stop infantilizing autistic people", which refers to those who treat autistic people like they're immature and incapable.

I belive in SIAP because autistic people want to be respected more!

by circusclownz June 10, 2020

SIAP

an acronym meaning Society Is A Platypus

I get it, a platypus is whatever is bringing you down, SIAP

by 1234perry May 5, 2020

SIAP

Acronym: 'Sorry In Advance Partner'.

SIAP, I'm going to crush you.

by Joe User Doser June 28, 2006