jack shit
noun Slang: Vulgar.
anything at all; the least thing (usually used in the negative): He doesn't know jack shit.
Nearby words
jack rope, jack rose, jack russell, jack russell terrier, jack salmon, jack shit, jack staff, jack tar, jack the ripper, jack towel, jack truss
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019