The act of pooping in your pants while eating a McDonald's sandwich. Mcphailing can sometimes be accompanied with retching, regurgitation and in extreme cases, chain farting and/or bleeding.
by Stainberg January 25, 2010
The Process whereby the smell of one fart lasts until the release of the next fart. This effect can be achieved through a rapid succession of weaker farts or the expulsion of an highly pungent fart.
Michelle's chain farting episode was so atrocious...we went for 3 minutes without a single breath of fresh air.
by Stainberg January 23, 2010