Top Definition
When a person is acting strange, bizarre or has a strange idea that makes no logical sense. Comes from the movie Old School after Will Farrel shoots himself with a tranquilizer dart
Tech 1: This customer thinks we can change the code to have clowns appear whenever the OK button is checked.

Tech 2: Sounds like they have a trank in the jugular
by Tech Support Guy May 20, 2011
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