Often seen in horror movies, it is a person's impulse or want to split up and/or investigate a dangerous situation for no apparent reason, often resulting in the death of one or both parties involved.
"Alright guys, let's split up."
~One man goes one way, and the other heads right into the room where they heard a gun shot.~
Man in the Audience:
"Dude, he just pulled a scared man split! He's gonna die."
Prices shown in USD.