phrases, sayings, idioms and expressions at

What's holding up the window washer

Posted by Aiko recalde on March 02, 2006

Can somebody tell me what this sentence means? "What's holding up the window washer?" One of my students asked me about it and it's the first time i've heard this phrase. I told her it might be some sort of idiomatic expression but i'm not sure about its meaning. can somebody help me, please? thank you!