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

Other days

aloxolt

Aloxolt Day
ruby

Ruby Day
get funky

Get Funky Day
youth

Youth Day
my little pony

My Little Pony Day
pick me

Pick Me Day
donate your hair

Donate Your Hair Day
me

Me Day
stress awareness

Stress Awareness Day
law

Law Day