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

Other days

martini

Martini Day
kiss a ginger

Kiss A Ginger Day
artists

Artists Day
boy friend

Boy Friend Day
believe

Believe Day
self appreciation

Self Appreciation Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
ponytail

Ponytail Day
boyfriend

Boyfriend Day
ride the wind

Ride The Wind Day