Oops, it doesn't look like 'junk meals day' is a national day..

Other days

stress awareness

Stress Awareness Day
ruby

Ruby Day
first love

First Love Day
blanket fort

Blanket Fort Day
stud

Stud Day
slime

Slime Day
fiancee

Fiancee Day
bow tie

Bow Tie Day
lisp

Lisp Day
carpenters

Carpenters Day