It means very
large amount of
something or
Humongous
Boy : Yo Ashley My
Pockets Will Be Fickety Fat when I get that promotion
Girl:
Damn!
fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety
fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety fuckety