Colloquial A period of time spent engaged in some group activity.
'We're not going to win a prize for graphics,' said Syd Silverman in a sesh this week.July 18, 1987, Financial Times, page 6:
"There's no opportunity either to take rhythm & blues or leave it alone at this sesh at the Apollo."2005, Bruce Pegg, Brown Eyed Handsome Man: The Life and Hard Times of Chuck Berry, Routledge, page 51:
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“Thank you in advance for respecting my family's privacy-- don't touch me-- while we deal with this isolated incident in which my husband flashed and mooned the beautiful voters of Staten Island after a poorly-timed masturbation sesh.”2023 July 27, Max Brockman & Shana Gohd, “The Campaign” (21:47 from the start), in What We Do in the Shadows, season 5, episode 4, spoken by Evie Russell (Vanessa Bayer):
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Colloquial An informal social get-together or meeting to perform a group activity.
Then it was on to the wallride for a sesh where numerous tricks were thrown down.2007 April 11, Dave Driscoll, “Get Off the Bus Tour: Update #2”, in Transworld Snowboarding Magazine, archived from the original on 31 Oct 2007:
Halo sesh2002, (Usenet):
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Went out for a quick sesh today in Huntington. Wore my spring suit.2003, (Usenet):
Empty lager bottles […] signified that Hans and Fritz also knew the joys of a desert sesh.1944, George Netherwood, Desert Squadron, Cairo: R. Schindler, page 119:
Impulse buys one Saturday afternoon, after a lunchtime sesh in the Ox[…]1999, Ian Rankin, Black and Blue, St. Martin's Press, →ISBN, page 39: