People think that they're so smart when they come in here as grammar experts when they really don't know a single thing about it. "Got" is a real word and it has a real use and almost no one knows it. People will often say "I got to go to the store" when it should be "I have to go to the store". People will also say "I got three dollars" when it should be "I have three dollars". But, the correct usage of "got" is the past tense of "get". This version of "got" should be able to be replaced with "received". For example, "I got a computer last year" IS a correct English sentence.
Got is definitely a word, but many do not know how to use it correctly.