The phrase used by a girl to warn someone of her impending PMS.
Oh shit, I can feel a storm-a-brewin down south. This isn't going to be pleasant.
the time between eating and having terrible, almost lethal gas
After his eighth bowl of chili with extra mayonaise, Jack knew that there was a storm a-brewin', something that Gartek, PstaKng, Stiltz, and Papa would not be looking forward to. In fact, he was too rude girl. 2-rood.
The point in time where you realize that you'll need to take a dump in the next 5 to 10 minutes. About the same amount of time it takes to brew a fresh pot of coffee.
"Hey man, I gotta get going."
"Already?"
"Yeah, I'm brewin' a fresh pot."
The act of drinking a beer while having sex. Usually performed from the doggystyle position and with the beer contained in a red solo cup.
Hold on man, you were driking a Natty Light WHILE you were hitting that? Oh yeah man, I was brewin while screwin.
When your farts get consistently more rank/putrid/vile during a short span in which you know they are going to be followed by a even more rank/putrid/vile shit, thus brewin’ gross.
Devon, can you please shit already? You’ve been brewin’ gross for the past hour.