It’s a much vulgar version of the much older “je m’en tamponne le coquillard”, the literal translation being “I’m patting my privates with it” meaning “I don’t care.”
There’s a famous song “Les nuits d’une demoiselle” by Colette Renard with lyrics in periphrases all describing sexual self-satisfaction using French language twists and vocabulary. A real gem!
Just like you, I switched to LAN mode and I’m using Orca anyway. Gonna wait for it to blow over, it’s still a great printer for the price but next one will most likely be Prusa. I’m still happy with my A1M+AMS, it’s a great introduction to the hobby as far as I’m concerned. It’s disappointing to see Bambulab behaving that way, I hope they change course.