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When one has had enough to drink and is a combination of being obliterated and belligerently drunk.
Tom: I can't have another shot because ill be obligerent!

Robert: Don't you mean belligerent and/or obliterated

Tom: No, obligerent
by seksahc trebor April 11, 2010
The art of being obliterated and belligerent at the same time. (usually after large amounts of alcohol).
If you weren't so obligerent last night, I wouldn't have had to bail your ass out of jail again.
by pete ford October 18, 2007