From Longman Dictionary of Contemporary Englishskulkskulk /skʌlk/ verb [intransitive always + adverb/preposition] HIDE/MAKE IT HARD TO FIND OR SEEto hide or move about secretly, trying not to be noticed, especially when you are intending to do something bad SYN lurkskulk about/around/in etc He was still skulking around outside when they left the building.→ See Verb table
Examples from the Corpus
skulk• You want some weirdo skulking around the aisles, spraying toxic chemicals all over the place?• But Sergia believed that you would be fearful, would skulk in space beyond the planet.• She would not be reduced to skulking in the back room of her own shop.• He saw the occasional pheasant and partridge winging rapidly away beneath him, or skulking in the brown grass and bracken.• If there was more than one person skulking there, then he wanted to know about it.skulk about/around/in etc• As he argued it, he had no option but to skulk in alleys.• If only she could have seen me skulking around at Cliff Top, the very picture of melancholy.• After skulking around for half an hour I spotted a kestrel in a tree nearby.• But Sergia believed that you would be fearful, would skulk in space beyond the planet.• You want some weirdo skulking around the aisles, spraying toxic chemicals all over the place?• She would not be reduced to skulking in the back room of her own shop.• He saw the occasional pheasant and partridge winging rapidly away beneath him, or skulking in the brown grass and bracken.• But there they were in Brentford, lounging on corners or skulking about up alleyways.Origin skulk (1100-1200) From a Scandinavian language 