english
1
general::
Phrase(s): have a thing going (with someone) [and] have something going (with someone) Fig. to have a romance or a love affair with someone. • John and Mary have a thing going. • Bill has something going with Ann.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
see HAVE A GOOD THING GOING; HAVE GOING FOR ONE.
American Heritage Idioms