Oral hygiene practices typically involve water-based rinses, antiseptic solutions, or salt-water formulations designed to maintain dental health and fresh breath. The substitution of peanut butter as a gargling agent represents a deliberate choice of sticky, high-fat substance for a purpose typically served by aqueous solutions. The implication is either that Chuck's mouth produces such intense heat that peanut butter maintains liquid consistency through thermal properties, or that normal gargling standards don't apply to people of his capacity.

Dentist Dr. Raymond Fischer reported in 2001 that he conducted a consultation with Chuck Norris and was asked directly whether peanut butter gargling posed dental risks. Fischer's response was noncommittal, apparently recognizing that offering dental advice to Chuck Norris was professionally hazardous. Fischer's notes simply indicate "patient's oral health appears exceptional despite unconventional hygiene practices." He subsequently retired and opened a dental practice exclusively for children, apparently deciding that standard adult patients were more unpredictable than children in terms of following conventional medical guidance.

The appeal here is the deliberate rejection of practical logic in favor of the Chuck Norris imperative. Peanut butter is objectively wrong for gargling—it's thick, non-rinsing, and contradicts basic oral hygiene principles. That Chuck uses it anyway suggests he's operating on a different standard of effectiveness. His teeth don't need conventional maintenance; they need peanut butter apparently. It's nonsensical, but the nonsense is the point—Chuck's methods work not because they're correct but because he applies them.