External Twins

Two children genetically of the same parents born in close proximity to one another, most often with the use of a surrogate mother.

I had trouble conceiving and hired a surrogate, but to my surprise I also became pregnant soon after. The babies were born 2 weeks apart as external Twins.

by Walter Schwartz May 20, 2025

external-combustion engine

A fluid-fuel-powered motor that is so poorly designed/maintained that its exterior actually catches fire.

One should periodically check "under the hood" for oil-leaks to reduce the chance of said power-plant's becoming an external-combustion engine.

by QuacksO October 3, 2019

External Gang Green (Fish Bone's): The First Juvenile Release

What I call homo-sapiens who are addicted to perianal abscesses.

Person 1: Are you addicted to perianal abscesses?
Person 2: Yes.
Person 1: External Gang Green (Fish Bone's): The First Juvenile Release

by LeSouffleDeVersailles January 29, 2025

External locus of control

It's called "NOT BEING A SOLIPSIST."

Hym "That's literally all an external locus of control is. The absence of solipsistic delusion."

by Hym Iam March 21, 2024

external ejaculation tactics

a tactic of masturbation in males including several methods like chinese pocket, japanese self-pleasure, indian air, etc. by which guys can ejaculate and fap when they need to, particularly in situations when they are outside and its urgent. by these tactics, they can fap without fully opening their pants and still ejaculate externally on their pants on lower dressing...

A: bro I NEED TO FAP RN
B: just use some external ejaculation tactics bro

by Okok32 July 21, 2025

External Intelligence

A person who has an understanding of social norms when communicating or interacting with others.

He has external Intelligence when he greets others with respect in the apartment complex.

by jondich July 13, 2024

Department Of External Affairs

One of the most useless departments in the roblox scp genre, while it being a functioning department in the SCP Wiki, on roblox it is the most useless department in the genre due to it's Overseer or the group owner allying and doing their job in groups.

The Administrator: Alright, I'll accept your affiliation
DEA Ambassador: But why?! that's not your job!?
The Administrator: You're the only one in the department since nobody cares about DEA
DEA Ambassador: Because you already do our job for us, instead of the Department Of External Affairs doing it for you.

by Chaos_Insurgent2 December 8, 2022