GOD Siblings 

You're mom or dad's best friends kids.
Similar to a play cousin but usually a tighter bond. Would be blood siblings if your parents were blood siblings

Who is that? Oh those are my God Siblings, my mom and their mom are best friends.

GOD Siblings by JDD346 June 15, 2019

God siblings 

God siblings are the children that your godmother or godfather have baptised. Many people say if a godparent has baptised a girl, the other children she will baptize must be girls so they won’t get married

I just met my God siblings. My mother was sure that I had no God siblings, but my godmother had baptized other children in the past.

God siblings by swaggiestoutofswaggiests April 26, 2021

God sibling in law

When your god sibling gets married their spouse then becomes your God sibling in law.
Usually when your sibling gets married their spouse becomes your brother/sister in law, in this case we want all to be welcomed to the family by including our god siblings spouse. Therefore you can refer to them as your God sibling,or God brother/sister in law.

Today, I went to the mall with my god sister in law.

Me and my god brother in law went to see a movie.

My god sibling in law took care of my pet while I was on vacation.

God sibling in law by IM_SYLVIE_NOW September 7, 2022

godsibling

Godparent's child.

My godsibling is a good person.

godsibling by UVWHF June 7, 2021