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3.
At a place of employment, having to close one night and then open the next day.
Damn, I only got four hours of sleep, I had to clopen at Starbucks today. I hate my boss.
by UnleashTheThrashards February 22, 2008
 
1.
Clopen is the act of closing at work one day and opening the next day.
Dude, Monday and Tuesday are gonna suck because I have to pull a clopen. I'm off at midnight and have to be back in at 8.
by JK651 January 07, 2007
 
2.
In retail closing shifts often end between 9 and midnight and opening shifts start between 7 and 9 am. A clopen is a portmanteau of closing one night and then opening the next morning, thus having as little as eight hours to eat, sleep, and shower between shifts. Depending on the kind of retail and the hours involved, clopens can be a mild annoyance or a brutal test of human endurance.
I'd love to hang out tomorrow night, but I'm clopening, so I won't get home until midnight and then need to be up at six am~
by DexRicon July 07, 2009
 
4.
In mathematics, a set that is both open and closed.
The union of the closed intervals |0,1] and |2,3] is a clopen set.
by Raptor007 January 27, 2009
 
5.
When one works a closing shift and the the next day works an opening shift
Man, I've gotta clopen on thursday
by DrEdrection November 06, 2010
 
6.
To work shifts where you do a closing shift and then the next day an opening shift.
Person 1: What's your work schedule this weekend?

Person 2: I have a clopen. I work closing shift on saturday (2:30pm-11pm) and then open on sunday (7am-3:30pm).
by fullofjoy20 May 08, 2009
 
7.
The term for closing and then opening in a retail job.
Man I can believe I have to clopen twice this week.
by Kirkbridian January 12, 2009