When you want to wish someone a good day but didn't want it to be so easy
Guy 1: Aight ima head out
Guy 2: Have a nice day.com
Guy 1: Well uhh thanks
A phrase used when things go well but something ruins it
“You smacked your brother with your new toy, this is why we can’t have nice things”
When a nice guy wants to tell somebody that he should fuck off.
Some Random Asshole:Hey Nice guy you suck ass
Nice guy: well fuck you but have a nice day
The greatest question ever to be asked.
Person: Hey, having a nice day?
AnotherPerson: You... you must be... awesome.