1 definition by BassChicken21

Meaning the last time you remembered or the last time you remembered something had happened.

Pronounced “last-er-day”
After somebody had done something wrong a very long time ago they said:
“Oh that happened lasterday

Or when they last remembered something:
Lasterday I had gone with Sarah to the store
by BassChicken21 March 30, 2021
Get the Lasterday mug.