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1. A word describing the leetness of a group of people. 2. Can be abberiavted to "exer" for the phrase Exer leetness which is used to describe the feeling of walking in on 4 lesbians participating in group sex and inviting you to join them.
Example 1: Last nights game was awesome i thought our team were Exercitum. Example 2: Dam mate, after last nights game i got such an exer leetness feeling.
by TripplexdoubleDs March 08, 2010
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