A male who does something so amazing/awe inspiring that you are in shock and have to call them a "great guy".
"Oliver Todd, he cried on New Year's Eve, what a great guy!"

"Ant, you drank so much last night, you great guy!"

"Meyrick's so multi talented - he's such a great guy!"
by Laurry February 21, 2010
1. A man who gives and/or loves without thought to himself; an unconditional friend

2. The man at the party who isn't a complete douche bag and/or tool; the un-roofied drink giver.

3. A man who is complicated to know but easy to love; a simply wonderful human being.

4. The term used to describe a indescribable man.
1. "It didn't matter what I said to him, he was always just A Great Guy."

2. "Do you remember Austin from the party?"
"Yeah, he was such A Great Guy."

3. "If you weren't such A Great Guy, I may hate you."

4. You're just...A Great Guy.
by TristanLoveMuch June 27, 2011
A basic phrase used by females on guys who they just don't want. The phrase should always be ignored, even in cases where it may seem as thought the female is sincere (which rarely happens).
Bob tells his friend that he thinks that Michelle likes him because she told him the following:

I want to suck you're dick

You're a great guy

I would like to date you

When we have sex I don't want you to use a condom

Although it may seem as if there are four phrases telling Bob that Michelle wants him, there are in actuality only three, for "You're a great guy" is a masic program installed in females as soon as they learn the english language and develop a desire for guys.
by LuveDeezNutz666 January 23, 2009