Goodbye isn’t good enough. When people are compelled to add an additional “You have a nice one” upon parting, smile brightly and reply “thank you!”
FAREWELL! thou art too dear for my possessing
And like enough thou know’st thy estimate:
The charter of thy worth gives thee releasing;
My bonds in thee are all determinate.
Sonnet LXXXVII by William Shakespeare, Farewell! thou art too dear for my possessing

I’d quite like to have a nice “several” then! Why be content with just one?
Nice. Nice. Hate that word.
Well I certainly wouldn’t go the Michael Jackson route.
Or you reply, “You, too!” and you each walk away happy with your nice looking noses.
I’m kind of partial to, “See you in the funny papers.” Inane but prompts an amusing visual.
Were you walking away at that moment? Maybe she was referring to your, um, backside.
I used to have a nice one but I’ve learned to be content with anyone.
…But what they really mean is SCREW YOU!
They’re just saying it nicely.
I do love any language where one word can mean many things. Makes for easy comedy.
You only say hello but there so many different ways to say goodbyes with tags;
Over here you hear: All good things must end so bye for now, goodbye
: that is it was ok but I now want to leave
Or I beta let you go ;
that is you have actually had enough
or See ya later;
to be friendly but never intentional .
Best wishes
George Carlin used to say, “‘Have a good one?’ I already have a good one. Now I want a longer one.”