An idiot. Similar in tone to 'prat', 'prick', 'twat' or similar. Originally from the rhyming slang 'Berkeley Hunt', for 'cunt', although not generally considered as offensive as that.

the thing that you don’t have when you’re phones percentage is over 20

Berk is a boy name.

He is the sweetest person I have ever met in my life, such an understanding, thoughtful, kind and funny boy. He is the only reason that I don’t deny anything I did, cuz all of them brought me here, and created the chance for me to meet him. He is a little shy, but still he talks to you in a warm way that makes you want to be his best friend for a life time. So Berk is a friend, who deserves smiling in every second and who I will support and love no matter what happens.

Blue plastacine charactor from the 80s cartoon Trapdoor. Overworked servant to the thing upstairs!

One who is unaccustomed to life in the outer planes; a person who lives on the prime material plane; an insult used by planers to insult the clueless; in short, an idiot

Berk, meaning idiot, or dickhead