A unification of individuals, usually taking place in a restroom or similar facility, wherein said individuals engage in flatulence that is clearly noticeable to those entering the restroom at a later date.
"Actually, I think some fartnership meetings were held in the 5th and 6th floor men's bathrooms today. I noticed that they left some of their materials there, though.."
See also Nasca v. GC Services Ltd. Fartnership, No. 01CIV10127, 2002 WL 31040647 (S.D.N.Y. Sep. 12, 2002).
As distinct from romantic ‘partner’, a fartner is someone in a relationship who feels sufficiently comfortable with their romantic partner as to fart freely in their presence. Generally, fartnerships take a moderate amount of time and inconsideration to develop, and, consequently, may be viewed as a more well-established relationship than a typical romantic partnership.