Basically when two
people are together, without the official title. Includes relationship-like habits, but an
individual caught up in "a thing" with someone is technically
single. It is often the step before a relationship.
1. PersonA: are John and Sarah
dating?
PersonB: They have a thing / thinging.
2. Sarah: why are you talking to Jasmine all the time?
John: chill out, you'
re not my girlfriend, I do what I want.