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

Other days

hoodie

Hoodie Day

martini

Martini Day

lost sock memorial

Lost Sock Memorial Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

stress awareness

Stress Awareness Day

chocolate milkshake

Chocolate Milkshake Day

buddy

Buddy Day

ormille

Ormille Day

bubble bath

Bubble Bath Day

tell ur crush you like them

Tell Ur Crush You Like Them Day