[kegel] A kegel (pronounced kee-gull) is a pelvic floor muscle exercise that can strengthen pelvic muscles, ...

What exactly is a ‘coregasm’?
A coregasm is an orgasm that happens while you’re doing a core exercise or workout. When you engage your muscles to stabilize your core, you may also end up contracting the pelvic floor muscles that can be essential to achieving orgasm.
https://www.healthline.com/health/coregasm
Images may be subject to copyright. https://mensvariety.com/male-coregasms-uncontrollable-gym/
SOURCE:
https://www.google.com/search?q=coregasm&rlz=1C1OKWM_enUS993US993&oq=&aqs=chrome.2.69i59i450l8.24708671j0j15&sourceid=chrome&ie=UTF-8

What are kegels?
A kegel (pronounced kee-gull) is a pelvic floor muscle exercise that can strengthen pelvic muscles, support pelvic organs, and help control incontinence of urine, bowels and gas. While there’s little scientific evidence to prove it, some doctors believe it also has potential to make sex more pleasurable.
https://www.uchicagomedicine.org/forefront/womens-health-articles/kegels-the-30-second-exercise-that-can-improve-incontinence-and-sex

Kegel exercise, also known as pelvic-floor exercise, involves repeatedly contracting and relaxing the muscles that form part of the pelvic floor, now sometimes colloquially referred to as the "Kegel muscles".
https://en.wikipedia.org/wiki/Kegel_exercise
https://www.youtube.com/watch?v=F1avNhG5wLk
SOURCE:
https://www.google.com/search?q=kegel&rlz=1C1OKWM_enUS993US993&oq=&aqs=chrome.2.69i59i450l8.24628263j0j15&sourceid=chrome&ie=UTF-8