Definition of gag

What does the word gag mean?

• part of speech: noun

  Thing thrust into mouth to prevent speech or outcry or (Surg.) hold it open for operation, (Parl.) closure or GUILLOTINE, (vb, apply g. to, silence, deprive of free speech); actor\'s interpolations in dramatic dialogue (vb, make these); g.-bit, specially powerful for horse-breaking, g.-rein, arranged to make bit more powerful, (gag, v.t.) apply g.-bit to (horse); (slang) imposture, lie, (v.t., deceive; v.i., practise deceit).