The act of masking another person's fart or offensive odor with a fart or offensive smell of your own.
There comes a time in every person's life when you are trapped somewhere with a foul smell. The single defense you have to offer is your own ass. And that is what will save your life.
My husband let a huge fart in the car and I, in turn, let a counter stink to save my own life.
I counter stink when ever I have a gassy dance partner.
My friends armpits smell like sour cream and chives, so I often run three miles then wipe my armpits off with his head, as an alternative counter stink method.
Sometimes I hold in my farts just in case I need a back up counter stink.