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

Other days

ruby

Ruby Day
lost sock memorial

Lost Sock Memorial Day
latina equal pay

Latina Equal Pay Day
buddy

Buddy Day
lash

Lash Day
coffee

Coffee Day
ride the wind

Ride The Wind Day
stud

Stud Day
slime

Slime Day
reading

Reading Day