jack (2) | jack shit

This page is about the slang term jack (2) | jack shit

American English


nothing; very little

For example

  • Why don't you get out of the house and do something? You've been sittin' around doin' jack all day.

  • Don't listen to John. He knows jack shit about how the economy works.

often used in the phrase "know jack about (sth.)" or "know jack shit about (sth.)"


This is typically used in American English but may be used in other varieties of English too.

Quick Quiz

"That guy Kenny knows jack about playing poker." He knows

a. nothing about poker

b. everything about poker

c. something about poker

Slang of the Day

Contributor: Matt Errey