Thrum \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. --Totten.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Thrum \Thrum\, v. i. [CF. Icel. ?ruma to rattle, to thunder, and E. drum.]

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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Thrum \Thrum\, n. [OE. thrum, throm; akin to OD. drom, D. dreum, G. trumm, lump, end, fragment, OHG. drum end, Icel. ?r["o]mr edge, brim, and L. terminus a limit, term. Cf. Term.]

[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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Thrum \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.

Source: Webster's Revised Unabridged Dictionary (1913)