A portmanteu of "frog", which is a slur for the French and "icicle", which is a reference to the extreme winter weather of Quebec, Canada.
Pierre over there doesn't understand what I'm saying. I hope he knows he's in America. Not a lot of people speak French in America. He's going to struggle if he thinks he can get by without speaking English.
Don't worry about him. He's a frogcicle. French Canadian. They only pretend not to know English just to screw with us. He knows exactly what you're saying.