by-blow /ˈbaɪˌblo/
 橫打,側擊,庶子
 By-blow n.
 1. A side or incidental blow; an accidental blow.
    With their by-blows they did split the very stones in pieces.   --Bunyan.
 2. An illegitimate child; a bastard.
    The Aga speedily . . . brought her [his disgraced slave] to court, together with her pretty by-blow, the present Padre Ottomano.   --Evelyn.
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 by-blow
      n : the illegitimate offspring of unmarried parents [syn: bastard,
           love child, illegitimate child, illegitimate, whoreson]