be highfalutin

informal To be pretentious, snobbish, and ostentatious. Those parties are too highfalutin—I just want to be able to wear jeans and chat like a normal person. That art-house film Tom dragged me to last night was nothing but highfalutin nonsense. I couldn't understand what the heck was going on! I didn't like that class—it was filled with photographers who were so highfalutin that they scoffed at my smartphone photography.