Someone who's face looks like a potato. This is usually used as an insult.

There are many things that rhyme with this word, including:
-Kobe's shoelace
-Religious waste
-Tomato paste
-Running pace
etc.

"allow it" means to just leave something alone, or don't worry about it. People in West London say this quite often.

Someone with an abnormally large forehead, similar to having a potato on it

When your forehead and/or chin are roundish are longer than your nose. Making the person's face look like it has been mashed in the middle like a potato.

No words to explain, too beautiful; but we will try our best: The process of lifting your chin up and sinking it back into your neck causing a chinless appearance. Potatoing is the verb form of potato face.

Potato face is when you take a photo and you have multiple chins or fatrolls that could be avoided by finding a flattering angle. They may not be there all the time but in pictures its hard to ignore.