a negative) To know, understand or have a clue. I'm sorry, I <span class="searchmatch">haven't</span> <span class="searchmatch">the</span> <span class="searchmatch">foggiest</span>. You should ask someone else. "I <span class="searchmatch">haven't</span> <span class="searchmatch">the</span> <span class="searchmatch">foggiest</span>": I don't know...