A chart documenting someone who’s obnoxious (or a GG) in great detail. When one looks at said chart the initial reaction is to “gag”. This is also the full word for the abbreviation GG.
Thomas: As you can see by this Gallo Gag Chart, the subjects has objectionable taste in clothes and needs grooming.
A- have you been to a fritangueria in Nicaragua?
B- never had a chance
A- whatever the dish you order, it always has gallo pinto in it, I LOVE it! you gotta go someday