Oops, it doesn't look like 'lurking day' is a national day..

Other days

ask out your crush

Ask Out Your Crush Day
boba

Boba Day
gum

Gum Day
prosecco

Prosecco Day
comfy

Comfy Day
fiancee

Fiancee Day
artists

Artists Day
one

One Day
singles

Singles Day
eat what you want

Eat What You Want Day