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

Other days

cat girl

Cat Girl Day
nae nae

Nae Nae Day
lisp

Lisp Day
nail polish

Nail Polish Day
lash

Lash Day
ride the wind

Ride The Wind Day
tulip

Tulip Day
boba

Boba Day
stress awareness

Stress Awareness Day
brow

Brow Day