From <span class="searchmatch">pinging</span> + -ly. <span class="searchmatch">pingingly</span> (comparative more <span class="searchmatch">pingingly</span>, superlative most <span class="searchmatch">pingingly</span>) With, or as if with, a <span class="searchmatch">pinging</span> sound. 2009 February 6, Alastair...