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

Other days

chocolate milkshake

Chocolate Milkshake Day
self appreciation

Self Appreciation Day
nae nae

Nae Nae Day
bow tie

Bow Tie Day
emoji

Emoji Day
prescription drug take back

Prescription Drug Take Back Day
ruby

Ruby Day
self care

Self Care Day
martini

Martini Day
blanket fort

Blanket Fort Day