B.B.S. (Burning Butthole Syndrome) 

Medical diagnosis describing a syndrome characterized by:
-Burning sensation of anus upon defecating
-Painful release of fecal matter
-Waddling post-defecation

Often accompanied by: tears, need for preparation H, and is often directly related to spicy foods or constipation.

-Bro, your mom's chimmychangas last night gave me hardcore B.B.S. (Burning Butthole Syndrome)!

B.B.S. (Burning Butthole Syndrome) by Carrima September 15, 2011

Burning Butthole Syndrome (BBS) 

The set of characteristics involving, but not limited to, a burning sensation around the anus and difficulty wiping. BBS often includes the associated condition of diarrhea. Though no clinical trial data exists, BBS is thought to highly correlate with the ingestion of spicy food.

I once ate a whole jar of peperoncini and then spent the next day suffering from "Burning Butthole Syndrome (BBS)."

Burning Butthole Syndrome (BBS) by Enrique Rodriguez January 28, 2009

Burning Butthole Syndrome (BBS) 

After a night of way too much spicy food, the bathroom experience.

Dang, I was crying for mercy on the toilet this morning thanks to my BBS...no more Super Deluxe Burritos for me! -Burning Butthole Syndrome (BBS)

Burning Butthole Syndrome (BBS) by JackOfLBC October 22, 2009