The phrase "ball over" is commonly used to describe situations where someone becomes overwhelmed or confused. There are many synonyms for this phrase, each with its own unique connotation. "Fluster" suggests a feeling of agitation or embarrassment, while "bewilder" implies confusion and disorientation. "Confound" has a stronger sense of perplexity and often implies being completely thrown off balance. "Dumbfound" means to leave someone speechless or unable to react, while "astonish" suggests surprising someone so greatly that they are left dumbfounded. Finally, "stupefy" implies shocking someone into a state of almost complete mental immobility.