[General] Meaning of smart a?

[goodstudent]

Is there something called smart Alex?

What does smart Alex mean?

Thanks

 

[Barb_D]

I'm more familiar with "smart Alec" than "smart Alex," and it's a euphemism for "smart a**" -- a know-it-all, a "wisecracker," perhaps someone being a bit sassy.

a smart alec - Idioms - by the Free Dictionary, Thesaurus and Encyclopedia.