Ully means fungi in Asian languages. It is also the antonym of 'gully'. The word mainly means ugly, butters and shit. Its meaning can vary depending on the context in which it is used in.
Jack: Yo that girl is ully!
John: Who? Haleema?
Jack: yh! Fully ully!
A partner that is overly aggressive with their significant other. They tend to dominate the relationship, yet also are very loving to their partner, provided they get to cum in them daily. Says "A-hee" during climax.