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It's a cool way of saying " goodbye" and "have a nice day" at the same time. It's friendly, but you can also use it with people you dont really know.
- See you later man
- Sure, have a good one
- Yeah, you too
by moniwonka July 02, 2009
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Jun 13 Word of the Day
No Bull Shit, and old hacker acronym which is usually used to signify that the talk will be serious.
User: I need to talk to you, NBS.
User2: ESAD, Noob.
by Heko July 17, 2004
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something you say to someone you don't know at all, or you don't want to know at all.
a bull shit way to avoid talking anymore.
there's no thought put into what you actually want the person to have a good one of...
customer:"thank you"
cashier:"yup, have a good one."
by daytr1pp3rr March 30, 2009
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to masturbate.

"Have a good one" being an alias for "Have a good wank", or more precisely "Go f*** yourself".

It seems that some people who are store clerks are embittered by the fact that they are store clerks and seek solace in this ambiguous flippancy.
VIP: Nice suit you are wearing eh?
Clerk: Thank you sir
VIP: Could you call me a cab?
Clerk: yes sir
VIP: good bye and have a nice day
Clerk: have a good one sir
by whateverTheHeck January 21, 2011
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Means enjoy your next joint, or canabis session. But also incognito as it can be used for, have a good day, or anything else.
"I don't have time to smoke, but have a good one."

"Bye, have a good one."
by Shadowdragon 42 January 08, 2017
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