A mild insult, or a way of offending someone without heavily swearing! Mostly used by the southern states of USA.
"crap" alone is often used by the British.
Freddy Feel Good and his funky little five piece band or FFGAHFLFPB is a term that means your hand... It says Freddy Feel Good because when you yank your chain it "feels good." The funky little Five piece band part is there because you have five fingers which are all part of the jerken of your yerken.
Random person 1: Dude i had soo much fun with Freddy Feel Good and his funky little five piece band last night!!