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

Other days

donate your hair

Donate Your Hair Day
bow tie

Bow Tie Day
brow

Brow Day
bonang

Bonang Day
reading

Reading Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
boyfriend

Boyfriend Day
cursing

Cursing Day
ruby

Ruby Day
offer

Offer Day