When someone defecates on a cone and gives it to someone saying it's chocolate flavored.
I gave my sister an Irish Ice Cream yesterday! I was taken aback by the fact that she actually enjoyed it!
My friends pranked me by giving me an Irish Ice Cream last week! It was really sh*tty.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).