Black monday.  The first Monday after the school-boys
  holidays, or breaking up, when they are to go to school,
  and produce or repeat the tasks set them.

Black psalm.  To sing the black psalm; to cry:  a saying
  used to children.

Black spice racket.  To rob chimney sweepers of
  their soot, bag and soot.

Black spy.  The Devil.

Black strap.  Bene Carlo wine; also port.  A task of
  labour imposed on soldiers at Gibraltar, as a punishment
  for small offences.

Blank.  To look blank; to appear disappointed or confounded.

Blanket hornpipe.  The amorous congress.

Blarney.  He has licked the blarney stone; he deals in the
  wonderful, or tips us the traveller.  The blarney stone is a
  triangular stone on the very top of an ancient castle of that
  name in the county of Cork in Ireland, extremely difficult
  of access; so that to have ascended to it, was considered
  as a proof of perseverance, courage, and agility, whereof
  many are supposed to claim the honour, who never atchieved
  the adventure:  and to tip the blarney, is figuratively
  used telling a marvellous story, or falsity; and also
  sometimes to express flattery.  Irish.

A blasted fellow or brimstone.  An abandoned
  rogue or prostitute.  Cant.

To blast. To curse.

BLATER.  A calf.  Cant.

Bleached mort.  A fair-complexioned wench.

BLEATERS.  Those cheated by Jack in a box.  Cant.—­See
  jack in A box.

Bleating cheat.  A sheep.  Cant.

Bleating rig.  Sheep stealing.  Cant.

Bleeders.  Spurs.  He clapped his bleeders to his prad;
  be put spurs to his horse.

Bleeding cully.  One who parts easily with his money,
  or bleeds freely.

Bleeding new.  A metaphor borrowed from fish, which
  will not bleed when stale.

Blessing.  A small quantity over and above the measure,
  usually given by hucksters dealing in peas, beans, and
  other vegetables.

Blind.  A feint, pretence, or shift.

Blind cheeks.  The breech.  Buss blind cheeks; kiss
  mine a-se.

Blind excuse.  A poor or insufficient excuse.  A blind ale-house,
  lane, or alley; an obscure, or little known or frequented
  ale-house, lane, or alley.

Blind harpers.  Beggars counterfeiting blindness, playing
  on fiddles, &c.

BLINDMAN’S buff.  A play used by children, where one
  being blinded by a handkerchief bound over his eyes,
  attempts to seize any one of the company, who all endeavour
  to avoid him; the person caught, must be blinded in
  his stead.