The next time someone replies back with “k” i’m going to say this:

K? K what? K the letter before L, the letter after J? Did you know that in JK, K stands for “kidding”. So your reply is “kidding”? Or K as in Potassium? Do you need some Special K breakfast? K, as in I can K/O you? Can I knock you out and feed you to hungry sharks? Sharks has a K in it.