Refers to where you feel a cough coming on while your mouth is full of food/drink, and so you hastily down the entire mouthful so that your mouth and throat will be free to expel the cough "cleanly", rather than there being a humongous "geyser" of messy stuff to go flying all over the place and disgustingly splattering everything within a several-foot radius.
I'd just swallowed a big bite of spicy-hot chili and was in the process of washing it down with a swig of cold milk when I felt an overpowering urge to choke, so I did a hasty pre-cough swallow to avoid a spluttery shower of tomato-tinted milk all over my new tablecloth.
Forcefully dropping a stinging turd, usually small and round but may also be liquified, while violently coughing.
Typically occurs when suffering form the flu or other virus.
That poor chap in the stall was clearly not well. The stinging cough drops were vary apparent from the sounds.
I was talking to my boss in his office when the remnants of this flu kicked in and I was coughing profusely and shat myself with a stinging cough drop at the same time. I had to waddle out and it was running down my pant leg.