Light switchfriends is what you call a friend that you are friends with for a while then you aren't and then you are again. Repeating in an order similar to a light switch.
The act of defecating yourself and then going back to change into different underwear, shorts/pants, etc. before anyone noticed you were gone.
Jimmy sat in the lecture trying to hold in his massive log until his bowels gave in. In a span of 5 minutes, he left and came back in a pair different colored shorts that went unnoticed by everyone, and resumed normalcy. Jimmy successfully carried out a Shit 'N Switch.
A type of trip fuse located in the back of the brain. When multiple tasks, deadline pressure, and unrealistic demands threaten the brain's delicate circuitry, the switch pops into "fuckit" or "safe" position, allowing for rest, relaxation, and a healthy attitude readjustment.
"If that phone rings one more time with another problem, it's going to blow my fuckit switch."