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

Other days

one

One Day
ruby

Ruby Day
boba

Boba Day
pick me

Pick Me Day
nae nae

Nae Nae Day
reading

Reading Day
bow tie

Bow Tie Day
brow

Brow Day
aloxolt

Aloxolt Day
frozen yogurt

Frozen Yogurt Day