a short fuse字面意思引线短，引申为脾气火爆；急性子。

【例句】
Boy, that football coach sure has a short fuse.
天啦，那个足球教练真是个脾气暴躁的人。

Jamie is known for his short fuse; just a few days ago he screamed at his coach for not letting him play.
杰米真是个急性子；几天前他就跟教练嚷嚷着说不要让他上场了。