Definition of "slick"

The threat the most radical of them pose is evidently far greater at home than abroad: in one characteristically slick and chilling Isis video – entitled “a message to the Jordanian tyrant” – a smiling, long-haired young man in black pats the explosive belt round his waist as he burns his passport and his fellow fighters praise the memory of Zarqawi, who was killed in Iraq in 2006.

2014 November 27, Ian Black, “Courts kept busy as Jordan works to crush support for Isis”, in The Guardian

I leave the train at Salisbury, where (in a very slick operation) another two-car set is added to the front of the train before it heads for London.

2022 November 16, Paul Bigland, “From rural branches to high-speed arteries”, in RAIL, number 970, page 55

Both slick and dainty.The spelling has been modernized.

, Homer, “(please specify |book=I to XXIV)”, in Geo[rge] Chapman, transl., The Iliads of Homer Prince of Poets. […], London: […] Nathaniell Butter; The Iliads of Homer, Prince of Poets, […], new edition, volumes (please specify the book number), London: Charles Knight and Co., […], 1843,

When Carver, wild to be published in a major slick, decided to accept the changes, Maryann accused him “of being a whore, of selling out to the establishment.”

2009 November 20, Stephen King, “Raymond Carver’s Life and Stories”, in The New York Times‎

I spent two fucking days locked up in that hotel room, miserable and hating myself and drenched in my own slick!

2017, "Tessa on Ice", quoted in Marianne Gunderson, "What is an omega?: Rewriting sex and gender in omegaverse fanfiction", thesis submitted to the University of Oslo, page 41

For his ruts, Castiel orders slick from a single donor, who is, unbeknownst to him, Dean, who lives at the Roadhouse and is in contact with many of his colleagues and rescuees.

2019, Tessa Barone, "Just Go Find Yourself a Nice Alpha: Gender and Consent in Supernatural Fandom's Alpha/Beta/Omega Universe", thesis submitted to Oregon State University, page 32

She observed another parallel to menstruation, namely the abundance of 'slick' that Omegas produce when they go into heat, which mainly functions as an anal lubricant.

2019, Chris van der Vegt, "The Second Genders: Utopia and Dystopia in​ Stranger Things Omegaverse Fanfiction", thesis submitted to Utrecht University, page 23

So I slicked the broccoli with oil and seasonings and set it to roast.

2009 January 14, Melissa Clark, “Green, Gold and Pink: Fast, Easy and Delicious”, in New York Times‎