Source : Webster's Revised Unabridged Dictionary (1913)

Lambaste \Lam*baste"\, v. t. [Lam + baste to beat.]
   To beat severely. [Low] --Nares.

Source : WordNet®

lambaste
     v 1: beat with a cane [syn: {cane}, {flog}, {lambast}]
     2: censure severely or angrily; "The mother scolded the child
        for entering a stranger's car"; "The deputy ragged the
        Prime Minister"; "The customer dressed down the waiter for
        bringing cold soup" [syn: {call on the carpet}, {rebuke},
        {rag}, {trounce}, {reproof}, {lecture}, {reprimand}, {jaw},
         {dress down}, {call down}, {scold}, {chide}, {berate}, {bawl
        out}, {remonstrate}, {chew out}, {chew up}, {have words},
        {lambast}]