waiting area beside the ring for wrestlers
Sumo term: the area just outside the dohyō where the next wrestlers wait for their bout.
次の力士が土俵溜まりで待っている。
The next wrestler is waiting in the area beside the ring.
Compound of 土俵 (dohyō, 'sumo ring') and 溜まり (tamari, 'gathering place'). The exact historical derivation is uncertain, but the term is specific to sumo.