a lump vs an idiot

Some examples from the web:

• He was like a lump of charcoal.
• This hand is nothing but a lump of flesh.
• I've got a lump under my arm.
• A few years ago I felt a lump on the side of my neck, and it was my turn in the MRI machine.
• That's the only difference between us and a lump of clay.
• She'll go down like a lump of lead.
• He can turn a lump of lead into gold.
• And he had a lump of iron.
• You were just a lump of meat.
• I'm behind a lump of concrete.
• You will get nothing but a lump of coal for Christmas.
• Because she turned a lump of coal like me into a diamond.
• Compared to him, Bug's a lump of coal.
• There's a lump of plastic that used to be a laptop.
• I've gone 42 years without a lump of coal.
• I once knew a lump of soil, and he thought he was going to die.
• It's like a lump of metal
• It is because I can feel a lump on my neck.
• She found a lump on her her dad.
• She found a lump a year ago.

Some examples from the web:

• Yes, brilliant impression of an idiot.
• Said your father was an idiot for trying.
• Crystal, I know when you're being an idiot.
• The lawman here is an idiot.
• You didn't realize Stefan was an idiot.
• A beard with an idiot hanging off it.
• First of all, quit grinning' like an idiot.
• Turk, I was an idiot.
• Because you are a coward, and an idiot.
• Malachi, you're not an idiot.
• You talked as if I was an idiot.
• And I'm not an idiot.
• Angel, you're such an idiot.
• You're right, he is an idiot.
• It's only logical that you thought I was an idiot.
• You'll think that I'm an idiot.
• No, you're not an idiot.
• And I think the shark's an idiot.
• Both of us thought you were an idiot, Sherlock.
• You're such an idiot, Heller.