I grow up

Listen up, buttercup. This joke is for people who are sensitive. Basically, the joke says, instead of keeping quiet, I mature. And when I see you, you make me so sick I have to puke. You see, people often use "throw up" as an insult. Like, "Ugh, that outfit is so bad, it makes me want to throw up!" Your jokes aren't funny and you need to get better at understanding humor, smart guy.