bazinga vs my aunt Fanny

bazinga

• Exclamation acknowledging a witty remark. 

• Exclamation indicating a successful outcome or sudden realization. 

• Exclamation indicating a successful trick or prank. 

• A thingamabob, a placeholder word for any unknown or nonspecific object. 

my aunt Fanny

• nonsense; rubbish (as a scornful dismissal of someone else's remark)