The husband of one's granddaughter.
My grandson-in-law is a good person.
by Rwopazaq November 24, 2019
Get the grandson-in-lawmug. by joebidensgrandsonsidechick February 18, 2021
Get the joe bidens grandsonmug. Great-great-great-grandchild's husband.
My great-great-great-grandson-in-law is a good person.
by Wonbig October 13, 2021
Get the great-great-great-grandson-in-lawmug. 
My step-great-grandson is a good person.
by Elivaldeq November 24, 2019
Get the step-great-grandsonmug. 
Get the grandson-in-lawmug. Great-great-great-great-great-great-great-grandson.
My 8X-grandson is a good person.
by N8953SW June 26, 2021
Get the 8X-grandsonmug.