on week

On week: A term guys use towards women who are being jerks/bitches for no apparent reason. Can be used in a derogatory way if combined with the “forbidden words,” bitch and whore.
Ex: Your such a bitch Cassie. Are you on week right now? Fucking whore.

Cassie: I fucking hate you John. Kill yourself.
Daniel: *whisper to john* Damn bro.
John: What a bitch. She must be on week.