From ass + butt. <span class="searchmatch">assbutt</span> (plural <span class="searchmatch">assbutts</span>) (humorous, slang, mildly vulgar) A term of abuse. Get away from me you freaking <span class="searchmatch">assbutt</span>! Google Books: [1]...
<span class="searchmatch">assbutts</span> plural of <span class="searchmatch">assbutt</span>...
multi-colored, polyester suit. He's sharper than a tack. buttass (plural buttasses) (Canada, US, humorous, slang, mildly vulgar) A term of abuse. <span class="searchmatch">assbutt</span>...
cumulus cloud which may be the same remarkable bluff head noticed on July 2. <span class="searchmatch">assbutt</span> back-butt bare-butt barebutt beer-butt chicken belfie blackbutt Boston...
assbrain ass-brained assbreath, ass-breath, ass breath assbucket Assburgers <span class="searchmatch">assbutt</span> ass call ass catch asscheek ass cheeks assclown, ass clown assclownery...