Shrug \Shrug\, v. t. [imp. & p. p. Shrugged; p. pr. & vb. n. Shrugging.]

[Probably akin to shrink, p. p. shrunk; cf. Dan. skrugge, skrukke, to stoop, dial. Sw. skrukka, skruga, to crouch.]

To draw up or contract (the shoulders), especially by way of expressing dislike, dread, doubt, or the like.

He shrugs his shoulders when you talk of securities. --Addison.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Shrug \Shrug\, v. i. To raise or draw up the shoulders, as in expressing dislike, dread, doubt, or the like.

They grin, they shrug. They bow, they snarl, they snatch, they hug. --Swift.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Shrug \Shrug\, n. A drawing up of the shoulders, -- a motion usually expressing dislike, dread, or doubt.

The Spaniards talk in dialogues Of heads and shoulders, nods and shrugs. --Hudibras.

Source: Webster's Revised Unabridged Dictionary (1913)