SOURCE: Stutchkoff, Der Oytser fun der Yidisher Shprakh. Yiddish speakers use the Hebrew curse ימח–שמו (Yemach shemo, "May his name be erased") as it stands, but they also treat the statement as a noun by adding the Yiddish words זאָל ער ווערן (zol er vern|may he become) or the suffix ניק- (-nik). The Hebrew ימח שמו וזכרו (Yemach shemo vezikhro, "May his name and memory be erased") is treated the same way:
!ימח שמו וזכרו זאָל ער ווערן
Yimakh shmoy vezikhroy zol er vern!
May his name and memory be erased!
SOURCE: Stutchkoff, Der Oytser fun der Yidisher Shprakh
