Whether it's considered "bad" depends on the context and audience.
* In formal settings: It's generally inappropriate.
* Among friends: It's often acceptable, especially if you're comfortable with your friends using stronger language.
* In public: It's best to err on the side of caution and avoid using it.
Ultimately, it's up to you to decide whether you feel comfortable using it. Just be aware that it's not considered a "clean" word and may offend some people.