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

Other days

lumpy rug

Lumpy Rug Day
bow tie

Bow Tie Day
one

One Day
pumpkin

Pumpkin Day
tulip

Tulip Day
china

China Day
boy friend

Boy Friend Day
law

Law Day
ask out your crush

Ask Out Your Crush Day
self appreciation

Self Appreciation Day