Noun. Similar to "preemptive strike" in attacking one's own urinary or fecal system as a movement is eminent. One will force a potty break in order to prevent an awkward situation.
"Just before I went in for my job interview, I made a pee-emptive strike so I wouldn't be squirming in my chair answering questions. Glad I made that move as I ended up needing to poop
"I didn't want to wake up in the middle of the night to take a wizz
so, as tired as I was, I took some time to make a pee-emptive strike before going to sleep."