New sizes for everything

Starbucks is able to make up their own names for sizes.
-- Trenta (916 mL)
-- Venti (591 mL)
-- Grande (473 mL)
-- Tall (354 mL)

I want to make up my own names for sizes.
-- Redonk (extra large)
-- Uuuuh (large)
-- Ok (medium)
-- Not enough (small)
-- WTF (fun size)

When you order a medium Pepsi, you'd say, "I'd like an Ok Pepsi."