Lewiston-foreplay
When a man strikes, batters, wallops, bludgeons, knocks, pops, slams, slugs, smashes, socks, swats, whacks, or otherwise hits his sexual partner in the back of his or her head with his penis.
Lewiston-foreplay : "hey Bill, how did the wife like the Lewiston foreplay?" "Oh, I'll tell you Larry, she really enjoyed the swing of my penis across the back of her head."