I'm looking for a word or short phrase for putting something non-specific in your mouth (not weird, I swear) [RESOLVED]

single-word-requests phrase-requests

I would say exogenous in-mouth substance. Exogenous meaning "originating from outside; derived externally".


I think in the context you describe, the term

introduced substances

is pretty unambiguous.

Merriam-Webster:

introduce definition 4: place, insert

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