O goshi (大腰?, major hip throw) is one of the original 40 throws of Judo as compiled by Jigoro Kano. It belongs to the Dai ikkyo (第一教?, first taught group) of the Gokyo-no-waza (五教之技?, five teachings of techniques), of Kodokan Judo. It is also part of the current 67 Throws of Kodokan Judo. It is classified as a koshi-waza (腰技?, hip technique).
Read more about O Goshi: Technique Description, History of Technique, Use in Other Systems, Similar Techniques, Variants, and Aliases