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."
av Jim9137 11. september 2005
1 more definition
Your Gun (doesn't matter what type), is full of ammo, therefore it is Flammo.
"holy tits, his AK is Flammo"
av Tyler Mueller 17. juli 2005