Invade Someone's Selfie
This page is the CodyCross answer for the clue below from Concert Hall, Group 587, Puzzle 4 (Boston Symphony Orchestra).
Question is: Invade Someone's Selfie
and the answer is: PHOTOBOMB
Word Meaning:
PHOTOBOMB — (transitive) To unexpectedly appear in a photograph, especially so as to ruin the picture.
Definitions from Wiktionary.