A sudden stimulation to the ears that causes blood to flow, giving a warm pink colour.
"Look at his Earrection! It's so red!" :D
by The Occasional Flame. May 14, 2010
When only one of a dog's ears points straight up or out to the side.
Hey, look at that little chiweenie's ear! It pointing straight out the the right and looks like he has an earrection.
by IkeNerd March 07, 2016