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Webster 1913 Edition

Noun.

Something used or suggested to produce terror, as in children or persons of weak mind; a bugbear.

And being an ill-looked fellow, he has a pension from the church wardens for being

bullbeggar

to all the forward children in the parish.

Mountfort (1691).

bullbeggar ‎(plural bullbeggars)

(obsolete) Something used or suggested to produce terror; a bugbear.
And being an ill-looked fellow, he has a pension from the church wardens for being bullbeggar to all the froward children in the parish. — Mountfort (1691).