SOURCE: Matisoff, Blessings, Curses, Hopes, and Fears. Compare:
.לעבן זאָלסטו ביז הונדערט און צוואַנציק יאָר—אָן אַ קאָפּ
Lebn zolstu biz hundert un tsvantsik yor—on a kop.
May you live to a hundred and twenty—without a head.
SOURCE: Matisoff, Blessings, Curses, Hopes, and Fears