I know that it means Google Is Your Friend, which means the information you seek can be found there. Unfortunately, you two seem to be keyed in to a culture that you probably shouldn’t be where the phrase is used as a put down. That’s unfortunate for you.
I’ll be Dan Lkaf Zchus here.
A violin would be a better choice because you can carry it with you and practice wherever you are. Pick up a cheap used one. You don’t need a course. Learn to play it by trial and error.
Dovidbt:
violin is one of the hardest instruments to learn, piano is the easiest to learn and the hardest to master.
If you want to just play a little bit, piano is a great choise, but it isn’t portable. Alternatively a wind instrument like a clarinet is very easy to learn and portable.