squelch (http://definr.com/squelch)

     n 1: (informal) a crushing remark [syn: put-down, squelcher,
     2: an electric circuit that cuts off a receiver when the signal
        becomes weaker than the noise [syn: squelch circuit, squelcher]
     v 1: suppress or crush completely; "squelch any sign of dissent";
          "quench a rebellion" [syn: quell, quench]
     2: make a sucking sound
     3: walk through mud or mire; "We had to splosh across the wet
        meadow" [syn: squish, splash, splosh, slosh, slop]
     4: to compress with violence, out of natural shape or
        condition; "crush an aluminum can"; "squeeze a lemon"
        [syn: squash, crush, mash, squeeze]