noun, noun which may take the genitive case particle 'no'
elementary school graduate; having only elementary school education
Colloquial abbreviation of 小学校卒業（者）. Often used to describe someone's educational background, sometimes with a negative or humble connotation.
彼は小卒で、中学には行かなかった。
He only graduated from elementary school and didn't go to junior high.
小卒の学歴でも、立派に働いている人は多い。
Many people with only an elementary school education work admirably.