Kuchaler (クチャラー - Noisy Eater)

Yesterday, I introduced "mayoler" (マヨラー), which means mayonnaise lovers, and "kechaler" (ケチャラー), which means ketchup lovers.

There is another slang term, "kuchaler" (クチャラー), the sound of which is similar to "kechaler."

If you chew something without closing your mouth, the chewing sound will be heard by others.

In Japan, this sound is represented by an onomatopoeia, "kucha kucha" (くちゃくちゃ).

Because of this, people who eat something while opening the mouth and making the sound have come to be called "kuchaler."

Almost all kuchalers don't seem to be aware of the chewing sound, but it can make many people unpleasant, so please be careful not to be a kuchaler.

クチャラー

昨日は、マヨネーズが大好きな人を指す「マヨラー」、そしてケチャップが大好きな人を指す「ケチャラー」という俗語を紹介しました。

「ケチャラー」と響きがよく似た俗語に、「クチャラー」というものがあります。

食べ物を口に含んだ状態で、唇を閉めずに咀嚼をすると、その咀嚼音は他人に聞こえます。

このときの咀嚼音を、日本では「くちゃくちゃ」という擬音で表現します。

このことから、口を開けて咀嚼音を出しながら食べる人のことを、「クチャラー」と呼ぶようになりました。

多くのクチャラーは自覚症状が無いようですが、他人を不快にさせることが多いので、気を付けて下さい。

• Yesterday, I introduced "mayoler" (マヨラー), which means mayonnaise lovers, and "kechaler" (ケチャラー), which means ketchup lovers.
• Yesterday, I introduced "mayoler" (マヨラー), which means "mayonnaise lovers"; and "kechaler" (ケチャラー), which means "ketchup lovers."

• There is another slang term, "kuchaler" (クチャラー), the sound of which is similar to "kechaler."
• This sentence is perfect! No correction needed!

• If you chew something without closing your mouth, the chewing sound will be heard by others.
• This sentence is perfect! No correction needed!

• In Japan, this sound is represented by an onomatopoeia, "kucha kucha" (くちゃくちゃ).
• In Japan, this sound is represented by an onomatopoeia: "kucha kucha" (くちゃくちゃ).

• Because of this, people who eat something while opening the mouth and making the sound have come to be called "kuchaler."
• Because of this, people who eat something while opening the mouth and making the sound have come to be called "kuchaler."

  This is grammatically fine. As an alternative, though, you could say this:
  
  Because of this, people who make this sound by chewing with their mouths open have come to be called "kuchaler."

• Almost all kuchalers don't seem to be aware of the chewing sound, but it can make many people unpleasant, so please be careful not to be a kuchaler.
• Almost all kuchalers don't seem not to be aware of the chewing sound, but it can make many people unpleasant uneasy, so please be careful not to be a kuchaler.

  You could also say this:
  
  Almost all kuchalers seem to be unaware of the chewing sound.
  
  This is probably a better option, since you don't have to deal with awkward negative words like "don't" and "not."

Well done! Keep up the good work! :)