bolus (n)
- Pharmacology, Veterinary Medicine. a round mass of medicinal material, larger than an ordinary pill. Abbreviation: bol.
- a soft, roundish mass or lump, esp. of chewed food.
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While I realize that fat has a tendency to lubricate the GI tract, I'd still recommend seeing a doctor if you find yourself dropping dinner in the john within an hour of eating it. That's extreme and unusual.