Precipitous Withdrawal

I was listening to NPR on the drive home from work this afternoon and heard Pres. Bush say, "I hope the Democratic leadership will drop their unreasonable demand for a precipitous withdrawal" [of troops from the war in Iraq].
I wonder if Bush even knows what the word "precipitous" means. I bet he doesn't. I think some speech writer wrote that and he has no idea what he's saying.