I was laying on my bed while my girlfriend was giving me head in doggie style position, when I licked the tip of my finger and reached around and stuck my finger in her butthole, I smiled the whole time as I gave her a dirty gary.
"Chucking a Gary" is term given to an individual who creates the most bullshit stories you've ever heard. A fabricator of the most elaborated and ridiculous stories imaginable.
Person1 “hey man, did you hear I’m paying to be the first space tourist ever?”
Person2 “Bullshit, stop chucking a Gary”
Person1 "nah seriously, and my uncle has 10 ferraris in his roof"