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

Other days

cursing

Cursing Day
lumpy rug

Lumpy Rug Day
china

China Day
hoodie

Hoodie Day
promposal

Promposal Day
artists

Artists Day
nae nae

Nae Nae Day
bow tie

Bow Tie Day
stud

Stud Day
self care

Self Care Day