This may seem wierd, but I want to know what is the deal with these
small white pieces of food (or what I think is food) that becomes
dislodged from the back of one's tonsils every month or so. These
little pieces (about the size of a penciltip) generally smell quite
bad- almost like the cause of bad breath.

If someone can tell me what exactly this stuff is and a name for it. A
link to more information would be helpful, as well as any tips on how
to limit its occurances.

Hello.

It sounds like you're describing "tonsilloliths" (aka "tonsil stones")

See:
DoctorHoffman.com - Tonsilloliths
http://www.doctorhoffman.com/xlith.htm

Yahoo Health- Treating Tonsil Stones 
http://health.yahoo.com/health/centers/parenting/00014004

As indicated in the Yahoo article...

"Most people with calculi of the tonsils have no associated symptoms.
In that case nothing need be done, except perhaps for brushing or
scraping them out... Gargling, refraining from eating during the 30
minutes before falling asleep, and careful oral hygiene may help
minimize their formation."

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search strategy:
tonsils white particles

As always, please keep in mind that Google Answers is not a substitute
for professional medical advice.  If you need professional medical
advice, you should contact a physician.

I hope this helps.

Nice work - thanks a lot