Bitchy (adjective)

1. Behaving in a spiteful or complaining manner, especially towards others.
2. Exhibiting a sharp, critical or hostile attitude.

Origin:

The word bitchy is a slang term, it is thought to have originated from the noun "bitch" meaning a female dog, and the suffix "-y" which is often used to form slang words. it is first recorded in english in the 20th century. .

Examples:

1. She always has a bitchy attitude, she's always complaining about something.
2. He was being really bitchy towards her, even though she had done nothing wrong.
3. She"s had a bitchy attitude all day, I don"t know what"s wrong with her.
4. She was giving off a bitchy vibe, so I decided to keep my distance.
5. He was being so bitchy that she decided to end the relationship.