1 definition by GrannyJea

The 'last night' of yesterday.

Two nights ago.

The night before last.
Taylor: "The music video was due yesterday by noon; did you complete it in on time?"
Alex: "Yes, barely - I finished editing it yesternight."

or

Audrey: "When was your basketball game?"
Ella: "It was yesternight."

or

Miguel: "Did you see the movie yesternight."
Luke: "Of course, that was opening night."
by GrannyJea December 3, 2017
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