Jump down somebody’s throat
Definition 1 of 1
Pro Tip 1/3Strong Emotional Response
Used when someone reacts with unexpected intensity, often due to anger or frustration. 
When I casually mentioned his mistake, he just jumped down my throat.
Pro Tip 2/3Not Literal
It's a metaphorical expression; no physical jumping or throats are involved. 
Remember, if someone says they 'jumped down your throat', they didn’t really leap into your mouth!
Pro Tip 3/3Informal Context
Typically used in casual conversation, not formal situations. 
He jumped down my throat for being late - sorry, I didn’t mean it’s a formal complaint.