It looks like you're gettin' into the Wild West spirit! "Git along, little dogie" is a classic phrase made famous by Roy Rogers in his cowboy movies and TV shows. The full quote is "Giddyup!" followed by "git along, little dogie," which was often accompanied by a horseback ride and a spirited lassoing performance.
The "LFG" at the end suggests you're ready to get into some action or game, but I'm not sure what that's about. Are you playing a Wild West-themed video game or just getting in the mood for some cowboy adventures?