How I Met Your Mother Codexery

Olive theory

A relationship theory about giving olives to show compatibility.

The olive theory is a playful relationship concept that describes compatibility between two people, whether romantic or platonic. It holds that a relationship is balanced when one person secretly enjoys olives but pretends not to, so their partner—who also likes olives—can have more. When one partner gives their olives to the other, the pairing is considered a good match.

The term was first coined by comedian Paul Reiser in his 1994 book *Couplehood*. It gained wider recognition through the pilot episode of the CBS sitcom *How I Met Your Mother*, which first aired on September 19, 2005. In that episode, Ted tells Lily and Marshall about his first date with Robin, noting that because Robin dislikes olives and he likes them, they are compatible. Lily and Marshall then explain that the theory works in their own relationship, since Marshall always gives Lily his olives. However, it is later revealed that Marshall actually does like olives but pretends not to in order to make Lily happy.

The theory saw a surge in popularity on TikTok in early 2024. Creators on the platform share how the olive theory appears in their own relationships and friendships, often swapping olives for other foods or personal traits. These videos serve as a lighthearted way to show how small differences can strengthen a bond. Similar trends include the orange peel theory.

Origin
Coined by Paul Reiser in his 1994 book Couplehood
Known for
Appearance in the pilot episode of How I Met Your Mother (2005) and a rise in popularity on TikTok in early 2024

Lore & Background

The phrase is most known for its appearance in the Pilot episode of CBS sitcom How I Met Your Mother, which first aired on September 19, 2005. In the scene, Ted tells the story of his first date with Robin to Lily and Marshall. Ted states that since Robin does not like olives but he does, they are compatible. Lily and Marshall add on that the olive theory works in their relationship, as Marshall always gives Lily his olives. However, it is later said that Marshall only pretended not to like them to make Lily happy.

Reader's Guide

The olive theory gained renewed attention in early 2024 on TikTok, where creators shared how the theory presents itself in actual relationships and friendships. Users have taken the liberty of getting creative with the concept by interchanging olives with whatever food or other characteristic applies to their dynamic with another person. These videos act as a fun way to demonstrate how they fit with others, how their relationship is stronger because of their small differences. The theory is often compared to the similar idea described in the nursery rhyme 'Jack Sprat' and the concept of opposites attract. Other similar trends include the orange peel theory. The olive theory remains a lighthearted cultural touchstone for discussing compatibility and small acts of sacrifice in relationships.

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