What is a dead giveaway someone has no idea what they are doing?

They have an engineering degree.

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Dead Giveaway Jokes More Dead Giveaway Jokes

What do you call a will?

a dead giveaway

Why don't undertakers provide free services?

That would be a dead giveaway.

Idea Jokes More Idea Jokes

What gave you that idea?

queried the octopus. "Oh, I have inside information" said the whale.

What is bruce banners favourite kind of potato?

HULK'S MASH! no idea where she picked it up from, but it made me chuckle