A fork of Rural Dictionary
The day after tomorrow. Two days ahead of the current one.
If you want you can visit my house overmorrow.
person 1: hey when are you guys leaving?
person 2: in overmorrow
Two days ahead of today, or the day after tomorrow. Its origin is German and it was used in old English so try not to use it around the uneducated or you will confuse them easily.
Coach: We have practice tomorrow. See you at 4:00.
Nic: But do we we have anything overmorrow?
Coach: Really dude? What the hell are you talking about?