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Totally imbalanced to a degree as to be unfair. Used originally in reference to real life or simulated combat between asymmetric combatants.
Example: US vs Saddam was totes imba. That's why he was hiding in a hole.

Example: Space Marines need to be nerfed bc Dawn of War 2 is totes imba..
by Nutcrust, The Real Nutcrust November 09, 2013