Horsing around 胡鬧
如果說某人在 horsing around, 意思就是這個人在胡鬧、閒逛，無所事事。
Stop horsing around and get on with your work!
You can't trust Michael to do anything – he's always horsing around.
To hold your horses 的意思的別著急，耐心點兒。
Hold your horses! We're not ready to go yet.