Eating your mayonnaise
Understanding something even when it's a mess. Like when someone talks like a babbling idiot and you still get it.
He talked like a robot with a cold. I got it. He was eating his mayonnaise.
She texted me a paragraph of random words. I got it. She was eating her mayonnaise.
He sent me a voice note that was 10 minutes long. I got it. He was eating his mayonnaise.