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

Other days

boba

Boba Day
bow tie

Bow Tie Day
cursing

Cursing Day
self care

Self Care Day
pick me

Pick Me Day
chocolate milkshake

Chocolate Milkshake Day
nae nae

Nae Nae Day
youth

Youth Day
ponytail

Ponytail Day
polyamory

Polyamory Day