How you would reference Easter the monday following.
"Hey dude what did you do yeasterday?"

"I had some family over and stuff."
by yeasterbunny April 6, 2010
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Da previous day when ya did baking and/or brewing.
During Prohibition, many bootleggers would discreetly refer to da previous day of moonshinin' as "yeasterday" when da "revenooers" were within earshot.
by QuacksO June 3, 2020
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