also smart alec noun Etymology: Aleck, nickname for Alexander Date: 1865 an obnoxiously conceited and self-assertive person with pretensions to smartness or cleverness, smart-aleck adjective smart-alecky adjective
SMART ALECK
Meaning of SMART ALECK in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012