I’ve also seen “Kiss Me I’m Polish” and other nationalities. With St. Paddy’s Day this weekend, I was wondering about this phrase, seen on colorful green and orange buttons. What’s the story behind it-where did it start?
With an Irishman trying to get a little
“Girls when you’re courtin’ take my advice,
Never let an Irishman kiss you more than twice”
Desperation and drunkedness.
(A bad combination.)
The earliest I can find is a newspaper story from 1963, button sellers with “Kiss Me I’m Irish” buttons in NYC.
And what about the buttons and bumper stickers I’ve seen that say “Kiss me I’m Polish,” “Kiss Me I’m Italian,” “Kiss me I’m Horny,” etc?
A favorite song lyric, in the current holiday’s mood:
“Kiss me I’m Irish,
I am the Wild Rover.
My eyes they are smiling;
And I’m seldom sober.”
Out of context, not particularly accurate, but fun. The song’s from Gaelic Storm - check them out if you like, they’re pretty good IMHO.
Damn you for beating me to it. My favorite band.
I have yet to see one that says, “Kiss Me I’m Black”. Racists.
In the 70’s buttons were popular. What’s wrong a few buttons on a 70’s hip outfit? The 70’s was filled with people speaking out and support your cause, and people did. Buttons came out with peace symbols, smilely faces, Snoopy dancing, Kiss me I speak (language), and lots of Kiss me I’m (ethnic). Everybody wanted to be kissed by somebody, or even a bit more. 
Kiss me I’m Irish has worked for many drunks in a pub I’m sure. I have about 20 buttons in a bag.
Lady at bar: Excuse me what are all those notches on your button for?
You: Kiss me and I’ll tell you. 
My WAG is that it’s a play on the tradition of the Blarney Stone - you kiss it for luck.
Since most of us can’t go out to kiss the Blarney Stone, the next best thing is to kiss a local Irishperson for luck. I suppose any one will do
The others (which I have never seen) just seem like a play off of “Kiss Me, I’m Irish” as a way to make some more money selling baubles.