'Bullbeggar' definitions:

Definition of 'Bullbeggar'

From: GCIDE

Bullbeggar \Bull"beg`gar\, n. Something used or suggested to produce terror, as in children or persons of weak mind; a bugbear. [1913 Webster]
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). [1913 Webster]