When you ask someone this question, you are asking them if they want to kiss you. If they say yes then its ok, but if they say no then dont even try. This is usually a phrase used between couples
James- Hey Emma, are you irish?
Emma- Yes
(they kiss)
2...James- Hey emma, are you irish?
Emma- No
James- DAMN IT!
An insult that is commonly used by someone who thinks he's clever to describe that someone as "Irrelevant" though it is completley out of context so makes no sense.
The feeling of deep love and affection someone has for you that the person would give up forever just to touch you (based off the song iris by the goo goo dolls)
Boy: hey girl, you're my iris Girl: awww youd give up forever just for me?
Boy: yea