half-second cousin

Grandparent's half-sibling's grandchild.

My half-second cousin is a good person.

half-second-cousin

1- Half-grandpibling's grandchild.
2- Living being that has zero parents, zero grandparents and one great-grandparent in common with other living beings.

Half-second-cousin.

second cousin-niece

Second cousin's daughter.

My second cousin-niece is a good girl.

step-second-cousin-in-law

1- Step-second-cousin's spouse.
2- Spouse's step-second-cousin.

step-second-cousin-in-law.

Second Class Citizen

Unopinionated, Oxford Dictionary Meaning (NPOV):
A person belonging to a social or political group whose rights and opportunities are inferior to those of the dominant group in a society.

Opinionated (For comedic value):
Someone who is so immature, that their rights and privileges are inferior to the majority.

If you are deeply offended by these definitions, go to Wikipedia.

Such examples of second class citizens are JackKing2K9

Person 1: STOP SWEARING!!!!!!!!!!!!!!1!1!!!!
Person 2: YKW? You are a Second Class Citizen for being immature

Person 1: OH OH OH OH OH OH OH OH OH OH OH OH OH OH!!!!!! HOW DARE YOU SWEAR, THAT'S IT, YOU ARE GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED GROUNDED FOR 2357852134780680237726087280236721461374371422163235621460989058 YEARS, GO TO YOUR ROOM RIGHT NOW
Person 2: Go to concentration camp immediately, you don't deserve human rights.

southern second

longer than a normal second, but shorter than southern minute.

I can whip up breakfast for us in just a southern second.

sesqui-second-cousin

Sesqui-2C:
Person who, in relation to the other person, has zero parents, zero grandparents and three great-grandparents in common.

My sesqui-second-cousin is a good person.