Definition of smart-aleckry in US English:

smart-aleckry

noun

US
informal
  • Behaviour characteristic of a ‘smart alec’; ostentatious or smug cleverness.

Origin

Early 20th century; earliest use found in Unpopular Review. From smart alec + -ry.

Pronunciation

smart-aleckry

/ˈsmɑːtˌalɪkri/