lmgtfy = (abbreviation) let me google that for you
www.lmgtfy.com lets you google for someone else. So for example, instead of answering a question, you get to be a smartass and answer it through Google!
#1: What is Urban Dictionary?
Let me google that for you.
You use the website "www.lmgtfy.com"
Search whatever the stupid person asked about;
And paste them the link
Does it all for them.
If they're not smart enough to know what it is,
They're not smart enough to JFGI.
"How many planets are there?"
"Wow, you're an idiot. LMGTFY."