"Ah shit, I'm very bad and stupid."
However, the actual meaning and intended emotion conveyed can vary depending on context. It can be interpreted as:
* Self-deprecating humor: Used jokingly to express frustration or embarrassment over a mistake.
* Genuine self-criticism: Expressing genuine regret or shame for something done wrong.
* Angry outburst: Used to express frustration and anger towards oneself.
It's important to note that this phrase is generally considered informal and somewhat vulgar. You wouldn't use it in formal settings or when speaking to someone you don't know well.
To understand the exact meaning and intent, consider the speaker's tone of voice, the situation they are in, and their overall relationship with the listener.