Fitzing the schlitz
When two people engage in this, you'll know. Open a window, turn on a fan, and hope you're not a direct relative of either party.
Brad: "Dude, open a window, I just smelled them fitzing the schlitz."
Tim: "Shit, that was my cousin"
Brad: "Dude, you just got fitzed by relation"
Tim: Commits seppuku
Tim: "Shit, that was my cousin"
Brad: "Dude, you just got fitzed by relation"
Tim: Commits seppuku