have a thing going

have a thing going (with someone)

To have or be in the midst of a romantic or sexual relationship with someone. I hear you have a thing going with Jeff from accounting. Is that true? I have a thing going with a lady across town, but it's nothing too serious.
See also: going, have, thing
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

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.
See also: going, have, thing
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also:
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