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

Other days

promposal

Promposal Day
get funky

Get Funky Day
aloxolt

Aloxolt Day
blanket fort

Blanket Fort Day
chocolate milkshake

Chocolate Milkshake Day
cat girl

Cat Girl Day
pick me

Pick Me Day
nae nae

Nae Nae Day
boba

Boba Day
coffee

Coffee Day