So, I was brewing distracted, which I will never do again, did everything right...except I didn't remember to add the big jug of liquid malt extract to the wort, or hopped water in my case! You would think it was my first batch. At least then I would have an excuse. I added it, brought it to a boil added my last amount of hops and turned it off. Should I just throw it out and start over or will it be ok?
Late additions of malt extract are actually a normal thing, although usually there will be a base wort that has some malt going. This is going to affect 2 things: First, the late addition can improve hop utilization. Secondly, the extract won't darken so much from the cooking time, and will result in a lighter beer. A google search of "Late Extract Addition" will return a number of pages covering the topic. So RDWHAHB, your beer is probably going to be A-OK.
You'll be fine if you had SOME extract in the boil (even if it were just steeped grain extract). You need some malt for the hops to isomerize.. you can not just boil them in plain water.
You will get a higher bitterness out of your beer because of the late malt additions. This is good if you were making an IPA. If you were making a lightly-hopped beer, the extra bitterness will knock it out of style guidelines. Maybe the beer will be too bitter to be enjoyable, but it could also be better this way (really!).
FYI - What you did by accident, I have done deliberately. Occasionally, I need to do a "partial boil" where the batch size is LARGER than the pot (you add top-off water to the fermenter). A drawback to this approach is loss in hop utilization efficiency. HOWEVER... that inefficiency is completely offset by adding half of your malt in the last 10 minutes of the boil. Basically the less dense your wort, the better utilization you have during the boil. I normally do a full boil, but once in a while I will squeeze 10 gallons into a 7.5 gallon pot. :-)