Okay, so imagine you are learning how to say a word, let's say "love". Normally, when we say the word "love", we use our voice to make the sound "luv". But in some places, like certain parts of the United States or the United Kingdom, people may say "lub" instead of "luv". This is called l-vocalization.
So, why do some people l-vocalize? Well, it's because different areas have different accents and ways of talking. It's kind of like how some people have blonde hair and some have black hair. It's just the way people in that area talk.
When you l-vocalize, instead of using your voice to make the "v" sound, you use your lips to make the "b" sound. It's like pretending to blow a bubble with your lips and saying "lub" at the same time. You might also notice that when people l-vocalize, it sounds a bit like they are saying "lub" and "love" at the same time.
Some people might think l-vocalization is a mistake or not proper, but it's just a different way of talking. Just like how some people say "tomato" and some people say "tomayto", and both ways are correct.
So, next time you hear someone say "lub" instead of "luv", remember that it's just their accent and the way they talk. It's important to respect and accept different accents and ways of speaking because it makes the world a diverse and interesting place!