Australian - "arsey" is an adjective to describe something as fortunate, lucky, or happening by chance. It can express a sense of serendipity or unexpected positive outcomes.
British - "arsey" an informal adjective describing someone or something as being difficult, annoying, or bad-tempered. It can describe a person's behavior, attitude, or situation, causing frustration or irritation. Synonyms for "arsey" include "grumpy," "irritable," or "moody."