Guys that are...

S-sperm bags
He such a pacs...but hes sooooo hot!
by sjbk721 September 22, 2010
Periodic Ass Check. A word that all girls should know. It is when you causally ask your friend, sister, or mom to check the back of your pants to make sure you didn't bleed through while you're on or in case you got your period. Calling it PAC makes asking this more subtle, and easier to find out if this happened.
Girl: Yo can you PAC me when I stand up?
Friend: You're good / go to the bathroom I'm behind you go go go
Girl: Thanks/ Oh shit
by periodacheck June 11, 2014
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.
It seems like Mugabe of Zimbabwe would be someone that would have supported the PAC.
by Phillip Foster June 12, 2008
Pussy-Ass Combo, a very underrated trait in women. Pronounced P-A-C, rather than Pac. Those who maintain it well are placed above all others. There is nothing more satisfying than a tight, clean PAC. Can reference the two holes specifically, or the entire region as a whole.
Son: "What makes a girl stand out from all the others?"

Father: "It's all about the PAC son. All about the PAC."
by is she hot? May 05, 2010
Acting like, or making an obvious display of the fact that you think, you're more badass than you actually are.
1. "Dude, did you see Sean take off his shirt and rock his wifebeater to get her attention?"

"Yep. That shit was pac!"

2. "Last night I snuck into the after party and hung out with Justin Bieber all night!"

"Dude, you are so fucking pac."
by Chilly J April 29, 2010
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