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

Other days

chocolate milkshake

Chocolate Milkshake Day
cursing

Cursing Day
bounce

Bounce Day
kale

Kale Day
nae nae

Nae Nae Day
bow tie

Bow Tie Day
offer

Offer Day
stud

Stud Day
aloxolt

Aloxolt Day
cuddle up

Cuddle Up Day