co-great-niece-in-law

The granddaughter-in-law of one's spouse's sibling.

My co-great-niece-in-law is a good person.

co-ing

When your Fathers coworkers are getting married, kick a pig...

Oh David did you hear Co-ing

step-co-cousin-in-law

1- Spouse's stepcousin's spouse.
2- Step-co-first-cousin-in-law.

My step-co-cousin-in-law is a good person.

step-co-niece-in-law

Spouse's stepnibling's wife.

My step-co-niece-in-law is a good person.

co-grandnibling-in-law

Spouse's grandnibling's spouse.

My co-grandnibling-in-law is a good person.

co-grandnibling-in-law

The grandchild-in-law of one's spouse's sibling.

My co-grandnibling-in-law is a good person.

co-grandnibling-in-law

Spouse's grandnibling's spouse.

My co-grandnibling-in-law is a good person.