When 2 or more people are taking a dump in a public restroom... The resulting combined odor, when detected by the olfactory glands of anyone present causes them to see a "brown flash".... Similar to a nuclear criticality ....both are caused by a critical mass of "PU".
Pete is no longer allowed to poop in our restroom when someone else is already in there...he has caused too many people to experience a shiticality induced brown flash due to his high fecal enrichment.
When, during a fight ( play or real), one person reaches down their pants and retrieves and copius amount of duck butter, then bitch slaps the other person in the argument. Not only did you just get slapped, but SURPRISE, now your face smells like duck butter.
My girl wouldn't quit messing with me, so finally I just pinned her down a gave her an extra greasy duck butter surprise. She said her face stunk for 2 hours.