facebook single
A facebook single is someone who's in a relationship but still says they're single on Facebook. They're like a kid who still wears pajamas to school but says they're dressed.
He said, 'I'm single!' even though he was out with his girlfriend every night.
She posted 'Still single!' even though her boyfriend was messaging her every hour.
He told me, 'I'm still single!' but I saw them eating fries together at the diner.