"More gassed up" is typically used to describe someone who is overly excited or hyped up about something. Other words that can be used as synonyms for this phrase include "amped", "energized", "fired up", "pumped", "excited", and "charged". These words all convey a sense of enthusiasm and excitement, and can be used in a variety of contexts. Whether you're talking about a sports game, a concert, or just a particularly exciting day at work, these words can help demonstrate the level of excitement you're feeling and convey that sense of energy to others around you.