IBS is
short for "i bust shit"
It is a condition that makes you shit too much, and that might make you
die. (sourse: trust me)
Many
people have died from IBS, like your mom, my mom, and joe biden.
Guy 1: "My
doctor said i might have IBS, because i be bussin' too much shit, and that is dangerous for
my life"
Guy 2: "Damn dude, that shit sucks"