A form of Sexual Asphyxiation you go down on your partner (Head) while they stand in the shower and water runs along his or her penis and water (Boarding) you while you pleasure him or her.
"You pair are always at it! I didn't mean to walk in on you head boarding her last night"
"I heard you and your boyfriend in the shower last night."...." Yeah, I totally head boarded him, but he loved it".
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)