Yestermorrow

When you can't remember what day something happened, because you've been awake for too many consecutive days.

Person 1: Remember that party yesterday... wait, or was that this morning?

Person 2: I don't even remember anymore, it was yestermorrow.

by TheReminder June 13, 2011

Yestermorrow

The time period thats after midnight but before the generally accepted time people wake up. Used by people who stay up late or all night and are trying to explain to another person when it is they want to hook up.

P1: You can come over tonight if you want.

P2: You mean tonight-tonight or tomorrow tonight.

P1: I mean tonight-tonight. You know....yestermorrow.

by LupoMadison January 16, 2022

Yestermorrow

When some idiot mixes yesterday and tomorrow together!

his birthday was Yestermorrow.

by KXLB3 August 22, 2006

yestermorrow

Between yesterday and tomorrow; in other words, today.

We're having a party tonight, because my birthday is yestermorrow.

by OhcaptainMycaptain November 25, 2009