Tons and tons
I believe the answer is:
slews
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tons and tons</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for slews that I've seen before include "lurches violently" , "Skids, bringing a vehicle's back-end around" .)