🙏 Culture & Etiquette

What is Oss in BJJ?

Pronunciation: ohss

Also known as: Osu

Quick Definition

A Japanese expression used in BJJ as a greeting, acknowledgment, or sign of respect.

Full Explanation

Oss (or Osu) is a versatile Japanese word that made its way into BJJ through its judo roots. It can mean hello, goodbye, yes, I understand, thank you, or show respect. The origins are debated, but it likely comes from "Onegaishimasu" (please) or "Oshi Shinobu" (push through). While common in BJJ, some academies use it heavily while others barely use it at all. It's generally a respectful all-purpose acknowledgment.

Examples in Context

"Oss! (greeting when entering the gym)"

""Did you understand the technique?" "Oss!" (yes, I understand)"

Origin

Japanese, adopted from Judo/Karate culture

Related Terms

Bow

A traditional gesture of respect performed when entering the mat or starting a roll.

Etiquette

The customs and behavioral norms expected in a BJJ academy.

Respect

A core value in BJJ culture, shown toward partners, instructors, and the art.

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