If you genuinely WANT to understand these meetings... you can't go in them cold.
This. If you don't understand any of these corporate meetings, ask your direct manager to explain. If you want to keep that question private, ask during your regular 1-on-1. Or, if you know your teammates have the same problem, ask during a regular team meeting. (I'm assuming you have both meetings on some regular cadence, if not, run away!)
Hopefully your boss can explain it in plain language. If not, run away!
This. If you don't understand any of these corporate meetings, ask your direct manager to explain. If you want to keep that question private, ask during your regular 1-on-1. Or, if you know your teammates have the same problem, ask during a regular team meeting. (I'm assuming you have both meetings on some regular cadence, if not, run away!)
Hopefully your boss can explain it in plain language. If not, run away!