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

Other days

one

One Day
offer

Offer Day
nae nae

Nae Nae Day
reading

Reading Day
boba

Boba Day
hiv awareness

Hiv Awareness Day
ride the wind

Ride The Wind Day
comfy

Comfy Day
youth

Youth Day
azonto is acceptable

Azonto Is Acceptable Day