sig

noun
  1. A short form or abbreviation for 'signature', often used in digital communication to refer to a block of text automatically appended to the end of an email or online post. noun
    I updated my email sig to include my new job title.
    His forum posts always ended with a humorous sig.
  2. A colloquial term used in some contexts to refer to a significant other or partner. noun
    I'm spending the weekend with my sig.
    Her sig surprised her with a romantic dinner.