look up any word, like ratchet:
Socially Awkward Gay Penguin
Roy hasn't been such a SAGP since Silo arrived at the zoo.
by AnthMike September 07, 2012
self- appointed grammar police/ policeman

those who take it upon themselves to correct grammar in the media, like newspapers and adverts etc.
alright alright.. someone's a sagp
by vmbee July 29, 2011