(informal, men's speech) we; us

(fiction) Mary Sue (without a gender connotation); a genre of fiction characterized by absurdly competent or perfect protagonists

(Internet slang) mai waifu

(Internet slang) I, me

myself, oneself

a photograph of oneself, a photographic self-portrait / (especially) a selfie

to take a photograph of oneself, to take a selfie

(idiomatic) selfishness, self-centeredness

one's own concern or problem

talking about oneself (especially, when the audience is not interested)