noun; a girl who frequently posts only attractive pictures of herself on
social media, especially
instagram, in order to gain attention and self-validation from strangers on the
internet
Guy 1: Hey
man, have you met Lexi? I thought she was pretty
cool when I met her in person but then I found her on Instagram and realized she was a instagir.
Guy 2: Good
luck with that buddy. She already has the interest of every dude on social media.