Is it a sin to kiss Catholic?

Premarital sex is always a sin and, in some cases, so is passionate kissing if the intent is sexual arousal between unmarried people, although in cases when they are engaged to be married, such kissing can be considered groundwork toward the eventual marital sex act, according to the Catechism—as long as it stays at

What is a Liverpool kiss?

noun. slang US, Australian, New Zealand Nautical. A blow delivered to the head or face, especially a headbutt.