havin' one
This is a shortened expression of "having a time" -- So, the act of experiencing any situation--in any context-- mildly or intensely, good or bad.
Synonyms for Havin' One
On this page, you will find 30 slang terms related to havin' one. Some of the top words include: good deal, razzle dazzle, big fat and gay, temporize, ven, and 25 more.