Oops, it doesn't look like 'ChampsCampus Wide Hangover day' is a national day..

Other days

Comfy Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lumpy Rug Day

Tell Ur Crush You Like Them Day

Ponytail Day

Get Funky Day

Martini Day

Lash Day

Buddy Day

Kiss A Ginger Day