The deadliest, coldest, semen produced by a warm blooded mammal ever. According to Amir Blumenfeld from popular Youtube channel CollegeHumor, who popularized the term, "Aardvark cum will freeze yo ass, Aardvark cum is frigidgas" Which let's you know that you don't want to fuck around with Aardvarks.
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).