Boob
Definition 1 of 3
Pro Tip 1/3
Colloquially Insulting
Used informally to insult someone's intelligence in a light-hearted way. He's such a boob, always forgetting his keys.
Pro Tip 2/3
Not for Formal Use
Avoid using 'boob' in professional or formal settings, it's too casual. I wouldn't call my boss a boob, even as a joke.
Pro Tip 3/3
Gender Neutral
This insult doesn't target a specific gender, can refer to any silly person. My sister acted like a boob when she lost her ticket.