The act of inspiration or simply a clever way of saying some clever idea came just like that. Think of heureka, but with extra style.
"Listened to The Doors and flammo! Here comes the idea."
作者 Jim9137 2005年9月11日
Your Gun (doesn't matter what type), is full of ammo, therefore it is Flammo.
"holy tits, his AK is Flammo"
作者 Tyler Mueller 2005年7月17日