Definitions by The Noob Chemist

House afire 

An event that occurs with a significant and unexpected amount of force. A dramatic reaction to an action.

This phrase is often used to comically amplify the severity of a chemical reaction between non-metals in the field of Chemistry

"If we had chlorine available to add to the octene, it would react like house afire!"

House afire by The Noob Chemist February 16, 2013