Top definition
A person who performs illegal abortions. This term is used in the Jethro Tull song "Cross-Eyed Mary," which is about a very young prostitute.
"She dines in Hampstead village on expense accounted gruel,
And the jack knife barber drops her off at school."
Mary had an unexpected surprise, so she paid a visit to the jack knife barber.
by mito0 August 18, 2008
Get the mug
Get a jack knife barber mug for your brother-in-law Vivek.