Gimping describes the trend of people (gimpers) taking photos of other people taking photos (gimps). Good gimpage is judged on how amusing or well-known the gimp looks when taking the photo. Multiple gimping; photos of many people taking photos, is also celebrated, with the intention of getting as many cameras as possible into the photo. Landmarks and tourist hotspots are typical areas to gimp, although gimpers will often happily gimp one another just for fun.
Japanese tourist group by the Eiffel Tower? Great gimping opportunities!