I was asked earlier what the white dicharge coming from a tonsil was.
A tonsillolith (also called tonsil stone or calculus of the tonsil) is a piece (or more commonly, a cluster) of calcareous matter which forms in the rear of the mouth, in the crevasses (called tonsillar crypts) of the palatine tonsils (which are what most people commonly refer to as simply tonsils).
Tonsil stones, it is theorized, are the result of a combination of any of the following:[1]
food particles
dead white blood cells (a.k.a. leukocytes)
oral bacteria
overactive salivary glands
Protruding tonsilloliths have the feel of a foreign object, lodged between the outside of wisdom teeth and the temporomandibular joint region of the fleshed jaw. They may be an especially uncomfortable nuisance, but are not often harmful. They are one possible cause of halitosis.[2]
My source is wikipedia
This discussion is related to
White Discharge with odor from throat?.