A fork of Rural Dictionary
A much more brutal version of "kill yourself."
It's so mean, because is you where to pop an actual Cesium pill it would blow you up from the inside of your digestive tract.
Joey: Heheh, hey Tom! I saw Timmy with your GF last night!
Tom: yeah? Well you can both go pop a Cesium pill, dickhead.
Joey: Jesus man! What the hell's your problem?
a person who flashes in a flash costume
a saw a flash flasher the other day, and ill never look at Barry Allen the same way again!