sesqui-first cousin-pibling

Child of their grandparent’s half-sibling with the other grandparent’s full sibling.

My sesqui-first cousin-pibling is a good person.

First pretender

Members of first responders clubs who actively avoid their duties.

You: Bilal! Go help that injured person!
Bilal: No.
You: Bilal you are a first pretender.

First Triangle

The President of the United States, the Vice President of the United States and the Speaker of the House forming a very odd triangle during the State of the Union Address!

This year, 2019, you and I may not be able to see the First Triangle in action given the fact that this year's State of the Union Address may be cancelled!

first step-cousin-aunt

1. The daughter of one's grandparent's stepsibling.
2. The stepdaughter of one's grandparent's sibling.
3. The daughter of one's stepgrandparent's sibling.

My first step-cousin-aunt is a good person.

first great-cousin-aunt

Grandparent's female first cousin.

My first great-cousin-aunt is a good person.

sesqui-first-cousin-once-removed

1- Child of their parent’s half-pibling with the other parent’s pibling.
2- Child of their parent’s half-nibling with the other parent’s nibling.
3- Child of their parent’s half-pibling with the other parent’s nibling.
4- Child of their parent’s pibling with the other parent’s half-nibling.
5- Parent's sesqui-first-cousin.
6- Sesqui-first-cousin's child.

My sesqui-first-cousin-once-removed is a good person.

first-cousin-3X-removed

First-cousin-thrice-removed (1C3R).

My first-cousin-3X-removed is a good person.