sop (s?p)tr.v. sopped, sop·ping, sops 1. To dip, soak, or drench in a liquid; saturate.2. To take up by absorption: sop up water with a paper towel.n.1. A piece of food soaked or dipped in a liquid.2. a. Something yielded to placate or soothe: remarks that were a sop to conservative voters.b. A bribe.[From Middle English soppe, bread dipped in liquid, from Old English sopp- (in soppcuppe, cup for dipping bread in); see seu?- in Indo-European roots.]SOPabbr. standard operating procedureAmerican Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.