photobomb
verb [ I or T ] informal uk/ˈfəʊ.təʊ.bɒm/ us/ˈfoʊ.t̬oʊ.bɑːm/
（在别人拍照时出现在前方或后方，通常举止滑稽以搏一笑）照片炸弹
to appear behind or in front of someone when their photograph is being taken, usually doing something silly as a joke
We were photobombed by a guy dressed in a gorilla suit. 我们的照片被一个身穿大猩猩装束的人搅了。