'Flagellant' definitions:

Definition of 'flagellant'

(from WordNet)
noun
A person who is whipped or whips himself for sexual gratification
noun
A person who whips himself as a religious penance

Definition of 'Flagellant'

From: GCIDE
  • Flagellant \Flag"el*lant\, n. [L. flagellans, p. p. of flagellare: cf.F. flagellant. See Flagellate.] (Eccl. Hist.) One of a fanatical sect which flourished in Europe in the 13th and 14th centuries, and maintained that flagellation was of equal virtue with baptism and the sacrament; -- called also disciplinant. [1913 Webster]