Top definition
When someone thinks they know everything and bullshit spews like green vile from their mouth. Similar to the vomiting scene in the Exorcist.
Man, Edward is a supreme douchebag! I asked him about the weather and Mr. Clever Clogs developed a severe case of Reganrhea and began to tell me how clouds are formed.
by sblack1877 January 20, 2012
Get the mug
Get a Reganrhea mug for your cousin James.