Top Definition
When you start drinking at 5 A.M. and pass out drunk before your kid wakes up.
My husband was supposed to take the kids to school, instead he pulled a Geoff day and didn't wake up until the evening.
by UMPiCK January 11, 2015
a geoff day is a day in which one does absolutely nothing productive
Grabdna had a Geoff Day than she died
by Geneary July 20, 2004
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