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1.
Pronunciation: 'Dia-Gra-Mik

Function: adjective

1. A way of describing a poorly drawn drawing or diagram.

2. A colleague or co-worker who posseses no interpersonal skills and lacks understanding of basic concepts. Has a fundamental problem with commitment, working as part of a team and the requirement of effort. Usually responsible for much resentment and one of the root causes for low morale and low motivation in the workplace.
"That Mike's a real fucking diagramic tosser!"
by Mike Newman June 09, 2005