Kolla upp vilket ord som helst, t.ex. tribbing:
 
1.
The parents of your live-in boyfriend/girlfriend.
I am having my sinlaws over for dinner...I hope I make a good impression since I have been shacking up with their son for a few weeks now and they are not down with the fact we are living in sin.
av PunTiff 1 augusti 2008

Words related to sinlaws

boyfriend girlfriend inlaws parents shacking up
 
2.
The parent of a partner in a romantic and cohabitating but unmarried relationship.
Sadly, John's sin-laws dropped by the house for Jane's birthday.
av Jim Dempsey 28 augusti 2004