when emu is having none of it and wants to bite off your head
Dang, Carmen just suffered a severe emu attack.
A person who hates Emus so much that they want to kill them without mercy.
I hate emus so much! Call me an Emu-Heretic all you want. I shall not listen to you Chikobliyats!
Being too smart
"omg that person got straight As"
"ikr, they must be emuing"
In Dungeons and Dragons or any other pen and paper RPG, when the Dungeon Master (or DM) invents or gives a way for the players to live when they normally would have died.
Our DM is really easy to play with. Any time we're about to die, a little De-eMus ex Machina comes along and saves us.
To be slapped by a person recently tarred and feathered
Oi bro, you just got emu slapped!