From hip is a phrase that refers to doing something based on instinct or without prior planning. There are many synonyms for this phrase, including 'impromptu,' 'spur of the moment,' 'off the cuff,' 'on the fly,' 'ad lib,' 'unrehearsed,' 'unplanned,' and 'unconventional.' Each of these synonyms represents a slightly different approach or feeling but all relate to a spontaneous or improvisational action. From hip can be used in a variety of contexts, such as in conversation, business, or art. It's an expression that captures the idea of thinking on your feet and following your instincts rather than relying on set procedures or rules.