snephew 

A person who's parents are related.
Typically brother and sister.

Yes Bly has four snephew's .

snephew by PBJay June 7, 2017

father's brother's nephew's cousin's former roommate 

Someone whom you have no relation to in genealogy. A joke in the movie Spaceballs

"I am your father's brother's nephew's cousin's former roommate"
"And that makes us?"
"Absolutely nothing! Which you are about to become!"
(Quote from Spaceballs)

father's brother's nephew's cousin's former roommate by psofrn November 8, 2012

Stephew 

The ship name of Matthew Patrick (MatPat) and Stephanie Patrick. MatPat runs the channels "The Game Theorists", "The Film Theorists", and "GTLive" which both of them are in. They are husband and wife, and they are so adorable! They are truly relationship goals!

Oh my GTLive!! Stephew is so perfect!!

Stephew by Tristen_Singer January 13, 2018

playing with the bishop's nephew 

"playing with the bishop's nephew" is the act of masturbating while taking a shit in public. in modern usage the term also covers the act of masturbating while shitting in private, however the public aspect of the activity is of no small importance.

derek: "hey ronny, what's happening?"

ronny: "ah nothin', just hangin' at the crib."

derek: "well, you wouldn't believe what happened to me today- so i was up at colombus circle waiting for the bus, just playing with the bishop's nephew, and next thing you know this bitch starts flippin' out."

ronny: "what'd you do then?"

derek: "i told the bitch to chill the fuck out, i'm just playing with the bishop's nephew."

ronny: "sounds reasonable enough."

playing with the bishop's nephew by pat seick February 5, 2010

Sonephew 

Sonephew is son from a biological brother and sister. They have him.

Stranger: I found out that I’m a Sonephew

Sonephew by Sakurakage May 15, 2021

Sonephew-in-law 

Sonephew-in-law: where your nephew married your daughter aka his first cousin.

Auntie: I guess I can call you my Sonephew-in-law.

Sonephew-in-law by Sakurakage June 26, 2023

stephew 

A male child of your siblings significant other from a previous relationship (boyfriend/girlfriend/fiance) who now is your 'step nephew = stephew'

'I'm babysitting my stephew tonight'

stephew by innamind November 4, 2010