thrum /ˈθrʌm/
 織邊,織餘,線頭,紗頭,亂彈(vt.)指彈,敲打,加纓于(vi.)亂彈,輕敲
 Thrum n.  [Written also thrumb.]
 1. One of the ends of weaver's threads; hence, any soft, short threads or tufts resembling these.
 2. Any coarse yarn; an unraveled strand of rope.
 3. Bot. A threadlike part of a flower; a stamen.
 4. Mining A shove out of place; a small displacement or fault along a seam.
 5. Naut. A mat made of canvas and tufts of yarn.
 Thrum cap, a knitted cap. --Halliwell.
 Thrum hat, a hat made of coarse woolen cloth. --Minsheu.
 Thrum, v. t. [imp. & p. p. Thrummed p. pr. & vb. n. Thrumming.]
 1. To furnish with thrums; to insert tufts in; to fringe.
    Are we born to thrum caps or pick straw?   --Quarles.
 2. Naut. To insert short pieces of rope-yarn or spun yarn in; as, to thrum a piece of canvas, or a mat, thus making a rough or tufted surface.
 Thrum, v. i.
 1. To play rudely or monotonously on a stringed instrument with the fingers; to strum.
 2. Hence, to make a monotonous drumming noise; as, to thrum on a table.
 Thrum, v. t.
 1. To play, as a stringed instrument, in a rude or monotonous manner.
 2. Hence, to drum on; to strike in a monotonous manner; to thrum the table.
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 thrum
      n : a thrumming sound; "he could hear the thrum of a banjo"
      v 1: sound with a monotonous hum [syn: hum]
      2: sound the strings of (a string instrument); "strum a guitar"
         [syn: strum]
      3: make a rhythmic sound; "Rain drummed against the
         windshield"; "The drums beat all night" [syn: drum, beat]
      [also: thrumming, thrummed]