plain sewing 

Mutual masturbation. A common term among the gay community in Australia in the 60s and 70s.

There was no anal action, just a bit of plain sewing.

plain sewing by Rufous Doors March 24, 2023

plain-sewing 

According to the Oxford Dictionaries: "(2) Slang , a sexual activity of homosexuals involving mutual masturbation." According to Fintan O'Toole's review of Edward Mendelson's "Complete Works of W.H. Auden" (vols. V and VI) in the New York Review of Books of Oct. 22, 2015, the expression was used by W.H. Auden in his essay on J.R. Ackerley's memoir, "My Father and Myself". Auden made it into the OED with two citations (for first use in print) from this essay of his, for "plain-sewing" and for "Princeton-First-Year", which means frottage, or rubbing, generally. Using the hyphen better distinguishes the expression from its main usage, that is, to refer to simple sewing.

Bruce and Wayne started with just a little plain-sewing in the shower, but then quickly threw themselves into bed and gave it everything they had.

plain-sewing by AlienAl April 18, 2025

Ceiling Swing Plan 

A stupid and chaotic plan, like an actual ceiling swing.

No. Shipping Kinsey and Charles together is a ceiling swing plan

Ceiling Swing Plan by Puffsie<3 November 11, 2022