"Ripe for a fight" is an idiomatic expression used to describe someone or something that is ready and willing to engage in a confrontation. Some synonyms for this phrase include "eager for a brawl," "ready for conflict," "primed for combat," "spoiling for a fight," and "itching for a quarrel." Other related phrases include "looking for trouble," "raring to go," "all fired up," and "full of fight." It's important to note that while these words and phrases all convey a sense of readiness for conflict, they can also have slightly different connotations and nuances depending on the context and the speaker's intention.