Well, it is, but with regards to my alphabet, G is for:
exclamation - to command a horse to go faster
verb - to command a horse to go faster or to encourage or rouse people to go faster
origin - from what I could find, early 17th century but exact origin unknown
Here are some horse-themed charts to accompany the phrase:
Hobby Horse by JBW Designs
Wild Horses by Orchidea
Four Horsemen by Ruth Thompson (HAED)
My personal Gs are:
gymnastics - in my distant (and much slimmer) youth I was a fairly good gymnast. However, joint problems at the age of 11 forced me to give it up or risk long-term damage.
Guides - after Brownies I was a Girl Guide. I wish girls had been allowed in Scouts back then as I would have much rather enjoyed survival skills rather than girly games and hobbies.
guinea pigs - I currently have four very friendly no-so-little furballs who definitely know when it's feeding time!
My finished G projects have to be these five, telling the story of a greedy little harvest mouse:
Harvest Mice by Framecraft
Stitched early 2001 in between bouts of very bad morning sickness whilst pregnant with my daughter! Very vivid memories!!
Tomorrow's H has been a challenge to find any related items for!