Definition from Wiktionary, the free dictionary
See also: swim
SWIM (third-person singular)
- (Internet) Someone who isn't me; someone who isn't myself
- SWIM would like to know how to grow marijuana.
- The initialism is used like a third person pronoun of unspecified gender, even though in meaning it may be substituting for a first person pronoun. Mostly used to talk about something without assigning oneself blame.