have a thing going on

== English == === Verb === have a thing going on (third-person singular simple present has a thing going on, present participle having a thing going on, simple past and past participle had a thing going on) (informal) To be in a casual or illicit romantic relationship. Synonym: have a thing ==== Usage notes ==== The relation of have to have got governs as usual; thus, we've got a thing going on or (dialectally) we got a thing goin on are alloforms.