Refers to a humongous "ah-choo!" that you consciously "divert" or "re-direct" the air-blast force of through your throat and out your mouth --- rather than letting it travel its "standard" path through your sinuses and out your nose --- thereby reducing the risk of a "wet 'n' messy" spray from your nostrils. Of course, you should still always cover your nose and mouth to minimize germy emanations in any case.
Performing the "escape hatch" sneeze can indeed often allow for cleaner nasal-cannon discharging, but it can also lead to hoarseness and a painful throat if excessively utilized in a fairly short period of time.
by QuacksO September 22, 2020