Eavesdropping

The action of purposefully overhearing someone in private

My dad was eavesdropping whilst I was playing video games.
Eg. what my dad heard while I was gaming: “guys on me.” “WHAT?!”” I’m coming, I’m coming oh my god I’m coming””I just exploded, pumped from the back” “guy next to me cranking so hard” “wow, that was quick surely a world record”