insignificant other 

Someone you are casually dating, while seeing others on the side. This person is almost always someone you would never consider dating exclusively, but, you keep around as a backup plan for free Saturday nights.

Maria: Oo, the new guy in Calculus is cute!

Virginia: Wait, I thought you and James were dating?

Maria: No, no, we're just insignificant others.

insignificant other by Madelaine August 31, 2008

insignificant other 

Friend with benefits.

Sophie: Are you and Brian officially a couple?
Nadia: No, we just hook up occasionally. He's my insignificant other.

insignificant other by Flanhoodles April 16, 2008

Insignificant Other 

If your SO is annoying, ungrateful, and overall an useless person, you call them your Insignificant Other.

"My boyfriend does not do any chores. He is my Insignificant Other."
"Shut up Carla, I only said I won't wash your undergarments"

Insignificant Other by PseudoWarrior07 January 12, 2022

Insignificant other 

Someone you are casually dating, while seeing others on the side. This person is almost always someone you would never consider dating exclusively, but, you keep around as a backup plan for free Saturday nights.

Maria: Oo, the new guy in Calculus is cute!

Virginia: Wait, I thought you and James were dating?

Maria: No, no, we're just insignificant others.

Insignificant other by Madelaine July 11, 2006

insignificant other 

how a person refers to their partner when they see them as negligible and unimportant

mitchell had a low opinion of his insignificant other, he assumed the worst about her intentions, even though he was wrong to do so.

insignificant other by scapegirl February 17, 2025

insignificant other 

in a personal relationship, a person who is unimportant to one's well-being. (especially a spouse or one in a similar type of relationship)

although they were supposedly in an intimate relationship, marieanne did not seem to warrant being informed of anything mitchell was doing. mitchell wouldn't even give her the common courtesy of letting her know when he was leaving or where he was going, and when he would return much later, he wouldn't greet her, and he would avoid entering any room she was in, sometimes for many hours.

mitchell's behavior made marieanne feel like she was his insignificant other.

insignificant other by scapegirl February 23, 2025

(in)significant other 

a phrase used to describe the cunt or douche that you used to officially have a relationship with that is still part of your life for whatever stupid reason that you're coming up with.

I took my (in)significant other to lunch yesterday. Not five minutes had passed before she was correcting my grammar and telling me that I was eating with the wrong fork. I LIKE THE LITTLE FORK.

(in)significant other by Milowe October 22, 2010