During sex when a woman squirts so hard and so often that it pushes the man's dick out, so he has to enter her repeatedly which forces air in causing her to queef in subsequent squirts.
That chick I fucked last night was squirting so hard she ended up Thunderstorming.
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).