a game played by two boys commonly (however more can be used). The game involves placing any object owned by a friend in a place that they find hard to get it from (eg a road or a tree). If this isn't adequate it is necessary to throw it out of the mode of transport you are travelling in.
Throwing a hat into the road AOG
Throwing a book into a garden AOG
Ass Only Gay
Why won't Chuck give him a blowjob? Oh, yeah Chuck is an AOG.