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

Other days

stress awareness

Stress Awareness Day

bounce

Bounce Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

donate your hair

Donate Your Hair Day

kale

Kale Day

lash

Lash Day

Emoji Day

pick me

Pick Me Day

gum

Gum Day

self appreciation

Self Appreciation Day