BJJ jargons, the language of pajama-wrestling. Brazilian Jiu-Jitsu has more jargon than a startup pitch deck. Here’s the greatest hits:

General Terms

  • Gi – the kimono/judo-like uniform you sweat into.

  • No-Gi – training without the gi, in rashguards and shorts. Basically “slippery mode.”

  • Roll – sparring. No, not sushi.

  • Tap / Tap Out – surrendering before your joints snap. Usually involves frantic slapping.

  • OSS – the universal grunt of respect, agreement, greeting, or just filler noise. Nobody agrees on its origin.

Positions

  • Guard – you on your back with legs wrapped around the opponent, pretending it’s intentional.

  • Closed Guard – legs locked around your opponent’s waist like a desperate koala.

  • Open Guard – same thing, but legs free and flailing.

  • Half Guard – you trap one of their legs, basically halfway between dead and alive.

  • Mount – sitting on someone’s chest like a smug gargoyle.

  • Side Control – pinning them sideways, crushing hopes and ribs.

  • Back Control – you’re on their back with hooks in, the Airbnb of choke setups.

Submissions

  • Armbar – forcing an elbow joint to bend the wrong way.

  • Triangle – choke using your legs around their neck and one trapped arm.

  • Kimura – shoulder lock named after a Japanese judoka who broke Helio Gracie’s arm.

  • Americana – like a Kimura, but different rotation. Shoulder still hates you.

  • Guillotine – choking them with their neck tucked under your arm.

  • Rear Naked Choke (RNC) – classic strangle from the back. Naked = no gi required, not clothing optional.

Training & Culture

  • White Belt Spaz – a new student flailing like they’re possessed by bees.

  • Sandbagging – deliberately staying at a lower belt rank to smash newbies.

  • Mat Rat – someone who practically lives at the gym.

  • Shark Tank – one poor soul stays in the middle while fresh opponents cycle in.

  • Flow Roll – gentle sparring, usually promised but rarely honored.

  • Meathead – the guy who uses biceps instead of brains.

BJJ jargon is basically a mix of Japanese holdovers, English nicknames, and whatever nonsense black belts invent on a Tuesday night. It’s a tribal dialect where “shrimping” isn’t about seafood and “spider guard” doesn’t involve arachnids.

 

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