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

Other days

brow

Brow Day
gum

Gum Day
cuddle up

Cuddle Up Day
blanket fort

Blanket Fort Day
boy friend

Boy Friend Day
nae nae

Nae Nae Day
lash

Lash Day
my little pony

My Little Pony Day
fiancee

Fiancee Day
self appreciation

Self Appreciation Day