Oops, it doesn't look like 'beer dancing in your underwear day' is a national day..

Other days

stress awareness

Stress Awareness Day

first love

First Love Day

book

Book Day

blanket fort

Blanket Fort Day

nae nae

Nae Nae Day

my little pony

My Little Pony Day

singles

Singles Day

hiv awareness

Hiv Awareness Day

lost sock memorial

Lost Sock Memorial Day

Emoji Day