An acronym of Get Up And Go, GUAG is a modern day term used to describe the spirit, desire and motivation to get up and do something, or, an individual or group possessing said attribute.
Wow that person has a lot of GUAG!
You’re going to need a lot of GUAG to get that done.
He/She’s got GUAG.
If he/she only had more GUAG they would have achieved their goal.