When you cast a concentration spell, ending the last spell you were concentrating on.
(comicpress.socksandpuppets.com)
OK that's really funny, I didn't understand why it resembles Hebrew and this is very very close (letter names are even the same).
Ignoring the table and reading it in Yiddish (which uses the same letters as in Hebrew with different pronunciation) this read closely to “oh my god“ ("omeged" but close enough)
Edit: reading right to left, of course.