Re*buff" (r&esl;*bŭf"), n. [It. ribuffo, akin to ribuffare to repulse; pref. ri- (L. re-) + buffo puff. Cf. Buff to strike, Buffet a blow.] 1. Repercussion, or beating back; a quick and sudden resistance.

The strong rebuff of some tumultuous cloud.

2. Sudden check; unexpected repulse; defeat; refusal; repellence; rejection of solicitation.

Re*buff", v. t. [imp. & p. p. Rebuffed (r&esl;*bŭft"); p. pr. & vb. n. Rebuffing.] To beat back; to offer sudden resistance to; to check; to repel or repulse violently, harshly, or uncourteously.

• A sudden resistance or refusal.
       He was surprised by her quick rebuff to his proposal.
  
• To refuse; to offer sudden or harsh resistance; to turn down or shut out.