1 - noun - a building located on the University of Guelph campus where students come to take notes, but really fall asleep.
2 - noun - a mental breakdown associated with frightening economics professors who, it has been speculated, will breakdown if their students decided to applaud their entrace into the room.
Note: See also, Mac Hall
1. "It's so easy to fall asleep in War Mem... The comfy chairs, the dim lights, someone's telling you a story... I just pass out."
2. "If we all just stood up and applauded him when he entered the room, do you think he would have a Mac Hall
? No, no, he would have a war mem!"