English Translation
I don’t get what the fuss is all about.
piger
familier [comprendre] to get, to twig UK
j’ai mis une heure avant de piger ce qu’il disait it took me an hour to catch on to what he was saying
©Larousse 2014
In the United States we also say “twig on“ to mean to suddenly understand. Used in casual conversation. Not sure if the “suddenly“ is part of the meaning of piger or not, but definitely the meaning is close.