AFD

AFD is an initialism for After Franks Disappearance. AFD is used to indicate a new age in Omniversal time. Much in the same way the Gregorian calendar has used BC and AD to indicate new ages, BFD and AFD are used to indicate such a transition. Used Primarily in Shack Wizard Lore and sometimes by Mr.Multiverse. 
The AFD event is when Filthy Frank disappeared, banished by the Peace Lord Yardaran for his crimes in the Omniverse. After this advent, an influx of insane amount of energy displaced itself, causing what is known as the Convergence. 
== Frank Clones ==
The Convergence saw the emergence of the incarnation of Filthy Frank, known collectively as "Frank Clones." Some scholars hypothesise that Filthy Frank-like characters have inhabited other universes. The Convergence caused these universes to bleed into each other, which is why these so-called Frank Clones showed up in AFD.
However, this does not explain why other Franesque entities exist in universes that do not use chromosomes as meta-currency, time measurement, and power level. 
The second leading hypothesis is that these Frank Clones are nothing more than Frank impersonators and are religious zealots of the Francis of The Filth Cult.
Some other scholars hypothesise that the Filthy Frank is an incarnation of another being that manifests itself as other begins in every multiverse to act as an anti-profit. However, this does not explain how or why that happens and is wildly unsupported.