A word used to describe or simplify saying "the day before yesterday".
Person 1: What did you do yesterday?
Person 2: I just slept all day, I was so worn out from lasterday's party.
by NirocDrof March 11, 2014
Get the lasterday mug.
when you remember doing something in the past but cant remember what day it was
mom: did your water the yard?

boy: yes.
mom:when
boy: uuumm lasterday
by Cerny Safir November 4, 2010
Get the lasterday mug.
i wasn't yesterday but it happened in the past month.
Man I was on the internet and i stumbled across this game, i think it was lasterday.
by Chris Fish March 24, 2008
Get the lasterday mug.
1 : on our last time together : when last we met together
2 : (Effective for classroom use):
last time this class occurred.
"Lasterday, i remember we were discussing the concept of inversive recursion."
by -Keith Hale- October 7, 2003
Get the lasterday mug.
A word used to describe an indefinite time in the past (e.g. last week, last month, last year)
Remember lasterday when we went to the beach?
by Brian May 10, 2003
Get the lasterday mug.
The time peroid that falls between yesterday and last week. Excelent for college students who don't have the capacity to remember what day it is.
Jess: Yell lost her phone lasterday.
by Jess's Drunk Ass October 2, 2007
Get the lasterday mug.