'Tom o' Bedlam' definitions:

Definition of 'Tom o' Bedlam'

From: GCIDE

Tom o' Bedlam \Tom o' Bed"lam\ Formerly, a wandering mendicant discharged as incurable from Bethlehem Hospital, England; hence, a wandering mendicant, either mad or feigning to be so; a madman; a bedlamite. [Webster 1913 Suppl.]