"Passport stamps" refers to the marks or ink impressions made in a person's passport whenever they enter or exit a country. These stamps serve as a record of their travel history, indicating the destinations they have visited. Full definition
I have since become addicted to traveling, collecting passport stamps the way some collect stars at coffee shops (admittedly, I collect those too). (mindbodygreen.com)
The variety and flavors have a richness and depth to it that usually only passport stamps can instill. (katestylepetite.com)
My goal this year is to get 2 passport stamps so I will be halfway there soon. (nicoletothenines.com)