1. collecting series of stamps at railway stations, tourist spots, etc.Wasei, word made in Japan, From English “stamp rally”. Wasei (word made in Japan)
In order to help students feel more familiar with the subway, the operating company is organizing various events, such as a one-day stationmaster experience for elementary and junior high school students and “stamp rallies” in which participants visit various stations related to specific themes (and collect a rubber stamp at each station in a plain paper book).— Jreibun