mark, mike, jason and joel were planning a full stack flapjacking session last night but joel didn't show, so the three had to make do with a short stack
a male with an erection, lies on his back while a second erect male inserts the penis of the first into his anus then lies back
"mark, mike, jason and joel were planning a full stack flapjacking session last night but joel didn't show, so the three had to make do with a short stack" What is the definition of "flapjacking"?