What Is FUPA? (ft.Achievement Hunter)

In Minecraft episode 249 the guys try to explain to ryan what FUPA means. Spoiler: He is a slow learner.
These clips aren't mine. All rights go to Achievement Hunter and Rooster teeth

[@NJDMashups]

My favourite bit has to be everyone (asides from Ryan) clearly emphasizing the word "area" in their sentences and Ryan still didn't get it until that moment of silence where it sinks in.

[@nicksiegler9537]

I'll be honest I've never heard of FUPA before either and I'm almost 20 so I had no clue

[@dragonkingz6123]

Would it be even funnier if this was my first time hearing the word F.U.P.A cause it is

[@theparagon1790]

Same.

[@weegee1204]

this is the funniest thing that's happened in minecraft in a long time xD

[@nihalvidyala5204]

I love these little tidbit videos, keep it up!

[@mylifeismymistake5614]

Thank You!

[@Frank_Ditch]

I’ve never heard of he Fupa or Butfor joke ever in my life, the only thing like that I grew up with was Icup

[@ItsDylanHarding]

I feel so fortunate that I get to watch the next evolution of Hembo rise up from the very beginning.

[@Providence83]

What word does Ryan say at 2:16? It sounds like something I should remember from Greek mythology.