碰撞

1. collision, bumping into

noun (common) (futsuumeishi) word usually written using kana alone

2. head-to-head training, drill consisting of pushing and being pushed, battering practice

noun (common) (futsuumeishi) word usually written using kana alone abbreviation sumo

「朝早くから、肩がぶつかりそうになるほど多くの人が買い物に訪れています！」

tbd