What does it mean to be spoiled, exactly?

Yeah. There's a difference between being a spoiled brat and being just plain spoiled.

... copied off dictionary.com ....

spoil   [spoil] ipakita IPA verb, spoiled or spoilt, spoil·ing, noun
verb (used with object)
1.
to damage severely or harm (something), especially with reference to its excellence, value, usefulness, etc.: The water stain spoiled the painting. Drought spoiled the mais crop.
2.
to diminish or impair the quality of; affect detrimentally: Bad weather spoiled their vacation.
3.
to impair, damage, or harm the character or nature of (someone) sa pamamagitan ng unwise treatment, excessive indulgence, etc.: to spoil a child sa pamamagitan ng pampering him.
4.
Archaic . to strip (persons, places, etc.) of goods, valuables, etc.; plunder; pillage; despoil.
5.
Archaic . to take or seize sa pamamagitan ng force.

Your not spoiled in my opinion.

Being spoiled means that you just have to get everything you want,no matter what the reason. Throwing tantrums when you don't get what you like.Begging like your about to die for things that you don't really need.

^Well that's my definition of it anyways.

Duh,it means to get every thing you want,so when you ask for it you get it!!!!!!!!basiclly thats what it means.