Dinner from a bucket (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dinner from a bucket</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 slop that I've seen before include "Cause to spill over" , "Spilled liquid" , "Bobby" , "Liquid refuse, swill" , "overflow" .)