Wiktionary
vb. To absorb, to soak up.
WordNet
Usage examples of "sop up".
They made him their mascot and dressed him in tiny Dartmouth sweaters and warmups, and when Marc was otherwise occupied they toted him around the campus, letting him sop up the Ivy League ambiance and audit every kind of class from algorithm analysis to French Symbolist poetry.
We must have our drapes sop up the blood-cloud so no drops foul our air system.
Of course it's of little interest in these advanced days when all viral diseases have succumbed to tailored synthetic molecules that sop up the viruses as soon as they emerge from their hiding places and gradually leach them entirely from the body.
Swearing with every foul oath he knew, he grabbed a rag and started to sop up the mess, then decided to fetch the innkeeper to do it for him.
Hadn't got drunk, as he recalled, but certainly more than he ordinarily allowed himself-he couldn't sop up the stuff the way Jubal did without paying for it.
There was seacress with it, weedcrackers to sop up the gravy and another bottle of cold beer from which she allowed him to pour her a small glass.