DICT.TW Dictionary Taiwan

 black·guard /ˈblægɚ/
 無賴,流氓(vt.)辱罵,行為如流氓(a.)庸俗的,濫罵的

 Black·guard n.
 1. The scullions and lower menials of a court, or of a nobleman's household, who, in a removal from one residence to another, had charge of the kitchen utensils, and being smutted by them, were jocularly called the “black guard”; also, the servants and hangers-on of an army. [Obs.]
    A lousy slave, that . . . rode with the black guard in the duke's carriage, 'mongst spits and dripping pans.   --Webster (1612).
 2. The criminals and vagrants or vagabonds of a town or community, collectively. [Obs.]
 3. A person of stained or low character, esp. one who uses scurrilous language, or treats others with foul abuse; a scoundrel; a rough.
    A man whose manners and sentiments are decidedly below those of his class deserves to be called a blackguard.   --Macaulay.
 4. A vagrant; a bootblack; a gamin. [Obs.]

 Black·guard, v. t. [imp. & p. p. Blackguarded; p. pr. & vb. n. Blackguarding.] To revile or abuse in scurrilous language.

 Black·guard, a. Scurrilous; abusive; low; worthless; vicious; as, blackguard language.
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 blackguard
      n : someone who is morally reprehensible; "you dirty dog" [syn:
          cad, bounder, dog, hound, heel]
      v 1: subject to laughter or ridicule; "The satirists ridiculed
           the plans for a new opera house"; "The students poked
           fun at the inexperienced teacher"; "His former students
           roasted the professor at his 60th birthday" [syn: ridicule,
            roast, guy, laugh at, jest at, rib, make fun,
            poke fun]
      2: use foul or abusive language towards; "The actress abused
         the policeman who gave her a parking ticket"; "The angry
         mother shouted at the teacher" [syn: abuse, clapperclaw,
          shout]