"Potential Alc(ohol) Connection". Someone who can provide alcohol for another person who can not buy alc for themselves (most likely because they are under 21 years of age).

Tupac Shakur, famous west-coast rapper shot dead in 1996. Birth name Lesane Crooks.

pac- refers to "tupac amaru shakur" - a famous gangsta rapper .

pac is a gangster rapper...hes the the shit unlike all these ludacris, lil john 50 cent pussy ass posers who probably never had trouble there way. when brothas are teferin to how much pac you got..they mean how close you are to a life that was as hard as the rapper,or if your gangster/ghetto material...someone with no pac is like a white boy (or black)who grew up in a house in a nice neighborhood.

Pool Appreciation Club

A shortened version of Tupac Shakur's (AKA 2Pac, Makaveli, The Don Kiluminati)name, given to him by those who seem to think they knew him as their best friend or something.
E.G:

Julius/Julie = Jules
Jason = Jase
Johnathan = Johnno
Stacey = Stace
Rebecca = Bec

Refers to the Pan-Africanist Congress which was created in the 50's for South Africans that did not agree with the ANC or African National Congress on Apartheid issues. Although PAC is still alive today it is referred to as the Pan Africanist Congress of Zambia and there isn't such a great following for it anymore.