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An acronym for the tragic and debilitating medical condition- Obsessive Compulsive Calendar Invite Dickhead. Sufferers are known to infuriatingly and incessantly send google calendar invites to acquaintances for even the most trivial of scheduled appointments, thus clogging up the unwilling recipients email, calendar and life. The only proven treatment is for the perpetrator to be euthanised.
Pottsy: 'It's your round, I'm going to go for a piss.'
George: 'Hang on, I need a piss too- I'll send you a calendar invite'
Pottsy: (farting disapprovingly) 'Your O.C.C.I.D. is next level...plus why the fuck does the calendar invite say 'Piss and Dutch rudder? It's not a Tuesday'
by liammcginty December 06, 2017
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