pg 

Up until the 1970s, the word pregnant was hardly used. If a female were expecting, she was said to be pg.

Oh, have you heard? Ellen is finally pg at 39?

pg by Richard Black March 30, 2005

PG 

Polish ganster someone of polish decent that is a total OG.

SJ is an OG. Wait his grandma is polish, that means he is a PG.

PG by HSJ January 9, 2008

PG 

A PG (Party Guardian) is a person who watches over people at a party in which alcohol is prominent. They are often sober or have had very little to drink. A PG is there to make sure nothing senseless occurs, apply judgment when it is needed, and to eradicate situations in which people might regret the following morning. They are often known to stop fights and to stop one person from taking advantage over another. May otherwise be referred to as TPG (The party guardian).

There is going to be a party at the Beta House tonight, wanna come?""I don't know, parties make me nervous. What if something happens?""Oh don't worry, we have a PG to make sure everything stays safe.""Sweet, I'll be there!

PG by Shadowsketch July 23, 2010

PG 

PG is the epitome of something that is Pretty Good.

That set of tits and ass on that dumb cunt is PG.

PG by Richard espeego lucifer g. November 10, 2008

PG 

A negative connotation that refers to the county of Prince Georges, in Maryland; or a negative person or negative condition relating to the county of Prince Georges, in Maryland.

Variants:
PG-i-fied,
PG'd

Geez, the crime around here is going up! Before long, this place will become another PG!

PG by CheetahCats April 11, 2010

PG 

1. Parental Guidance suggested (movie rating)
2. as clean as the aforementioned movie rating

that homie is as PG as muthafuckin' Jesus Chrizist.

PG by Aesop Rock October 26, 2003

pg 

Physics Girl

Originally used by an obsessed college student to refer to his crush, who happened to be studying, you guessed it, physics.

Now used as a generic term to refer to a crush or (female) obsession, widespread among Western Australian university students.

Also mentioned in the song "stalker number 5", available at users.tpg.com.au/adsl9alx/stalker.html

a: So this is your new PG?
b: Shut up! I'm not obsessed!

pg by T June 5, 2004