Og

¹ American  

Symbol, Chemistry.

1. oganesson.

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o.g. ² American  

abbreviation

1. Architecture. ogee.

2. Philately. original gum: the gum on the back of a stamp when it is issued to the public. Also O.G.

3. own goal.

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O.G. ³ American  

Or OG

noun

Slang.

1. a leader or elder in a street gang.

   Even the toughest homie will show respect to a real O.G.

2. a person or thing that is respected as genuine and classic (often used attributively): This is an O.G. muscle car built just for street racing.

   Julia Child was the O.G. of elevated American cuisine.

   This is an O.G. muscle car built just for street racing.

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O.G. ⁴ American  

abbreviation

1. officer of the guard. Also OG

2. Architecture. ogee.

3. Philately. See o.g..

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OG ¹ British  

abbreviation

1. officer of the guard

2. Also: o.g.  philately original gum

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o.g. ² British  

abbreviation

1. own goal

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Usage

What else does OG mean? OG is a slang term for someone who's incredibly exceptional, authentic, or "old-school." It can be earnestly used for a legend like Michael Jordan or more ironically, like for that friend who can unwrap a Starburst with their mouth. How do you pronounce OG?[ oh-jee ]

Etymology

Origin of O.G.

First recorded in 1970–75; abbreviation of Original Gangster, coined by the Crips, a gang founded in 1969 in Los Angeles and extending along the southern California coast. O.G. was popularized by O.G. Original Gangster, the fourth studio album (1991) by the American rapper Ice-T, stage name of Tracy Lauren Marrow (born 1958); gangsta ( def. )

Compare meaning

How does og compare to similar and commonly confused words? Explore the most common comparisons:

• Kush vs. Og

Example Sentences

"As Irish people, it's just not in our nature to watch these things happen internationally or domestically and stay silent," said Mo Chara, whose real name is Liam Og O hAnnaidh.

From Barron's • Mar. 20, 2026

In college, he stumbled upon “The Greatest Salesman in the World,” a 1968 book by the author Og Mandino, whose work is a bottomless resource for Successories posters and #MondayMotivation posts.

From Washington Post • Oct. 18, 2020

And I’m thinking of diving back into reading “The Greatest Salesman in the World” by Og Mandino.

From Los Angeles Times • Mar. 18, 2020

Sendlingur Og Sandlóa is a song about relationships in which one partner spends long periods of time away from home.

From The Guardian • Jun. 13, 2012

Then she turned to Og and said, “Thanks again, Og.”

From "Ready Player One: A Novel" by Ernest Cline