Theo: Dad, can I have an advance on my allowance?
Cliff: I'm sorry son, you're already backed up to your 50th birthday.
Cliff: I'm sorry son, you're already backed up to your 50th birthday.
Theo : Dad, can I have an advance on my allowance?
Cliff : I'm sorry son, you're already backed up to your 50th birthday.
http://www.tv-quotes.com/shows/the-cosby-show/quote_2056.html