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

Other days

tell ur crush you like them

Tell Ur Crush You Like Them Day
slime

Slime Day
comfy

Comfy Day
gallery

Gallery Day
ruby

Ruby Day
pick me

Pick Me Day
me

Me Day
boba

Boba Day
boy friend

Boy Friend Day
gum

Gum Day