Noun, word used to describe really filthy, manky, disgusting living conditions, not necessarily inhabited by 'ferals'. Such living conditions transcend normal grossness and are rampantly foul. Ferality can be seen in some student flats and at campsites at music festivals. Also used to describe the way of life and attitude that accompanies such living conditions.
When you use an empty bacon packet as a plate and a lighter as a fork and make bongs out of salamis (and use them), you know you're living in ferality.
A state of mind where you do spontaneous and dangerous acts, such as sending nudes so multiple people or sleeping with people you don’t know. a state of ferality usually lasts a few weeks and usually occurs after an episode of depression or deep sadness.
harvey has entered ferality because he slept that someone he met the same day and blocked them straight after.