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
      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]
 thrumming
      See thrum