Get over your sweet little self -- often used as the shorter acronym (Goysls). Used to indicate someone who has let their ego get the better of them. Often used to describe a person who is overly confident or cocky, but without plausible reasons.
Jeanine: "You like this unicorn tattoo I got on my back?”
Eddie: "Oh sheeeeet, that ugly assed thing?? You better goysls motherfucker. Hide that pathetic shit. It’s fucking embarrassing.”