the most common verses for "The Diarrhea Song" are sometimes sports, automobile or travel related and can include a uh uh or a cha cha cha after the Diarrhea, Diarrhea part, or sometimes two hand claps at the end of each two-line stanza. All of these are onomatopoetic "Plop, Plop" (Diarrhea, plop, plop, diarrhea.) More recently, especially in written record, it is preferred to use only 'Diarrhea, Diarrhea', allowing the reader to add their own localization based on preference.
Although many different lyrical variations exist, all share the same structure. First, a common activity or scenario is described. Then, the appearance of something soft, runny, smelly, messy, sloppy, squirty, and/or gooey is noted. The terminal lyric confirms that that aforementioned substance is, indeed, diarrhea. As an example of the lyrics, the variation made famous by the movie Parenthood is as follows:
"When you're sliding into home and your pants are full of foam, diarrhea."
Wikipedia also mentions this golden oldy in the notes:
American musical comedy group Da Yoopers also recorded an unrelated song called "Diarrhea" or "Love Song Called Diarrhea", which can be found on their 1988 album Yoop It Up, as well as their 2005 album Songs for Fart Lovers.
The major source for this information comes from one, Official Diarrhea Song Blog, which proports to be "the Authoritative Source on Everything Related to The Diarrhea Song—Maintained By Those Dedicated to Cataloging and Upkeep of The Diarrhea Song In All Its Forms."
Some Examples of tabulated verse found there include:
When you think your friends are joking
but your pants are brown and soaking:
Now you think you're feeling better
but you keep on getting wetter:
When your stomach starts a rollin'
and you're cleaning out your colon:
When your stomach really hurts,
and you know that it’s the squirts:
When your chillin’ with your daughter
and you feel the poopoo water:
When you're foecally obsessed
and it splatters on your chest:
When you’re in a Pontiac
and brown comes down your crack:
When you’re sitting in your Chevy
and you feel something heavy:
When you’re rummaging in the attic
and your ass goes automatic:
When your bowels are paranoid
and you just busted a 'roid:
When you’re lounging by the pool
and your ass begins to drool:
When you smell just like a hog
and you make a liquid log:
see also: http://diarrheasong.blogspot.com/ for more verse and more fun.
*One of my all time favorites:
WHEN YOURE SLIDING INTO FIRST
AND YOU FEEL A SUDDEN BURST: