Oops, it doesn't look like 'suck your husbands dick day' is a national day..

Other days

Self Appreciation Day

Carpenters Day

My Little Pony Day

Healing Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Cursing Day

Prescription Drug Take Back Day

Tell Ur Crush You Like Them Day

Embarrass Your Best Friend Day

Promposal Day