Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
A tool used by 'railroad engineers' (now archaic on modern locomotives and loading docks) 1) A Johnson Bar, aka "J"-bar, is a lever-dolly; (a wheeled prybar having an extended handle and a deep reverse-beveled nose-iron), which is used to jockey heavy apparatus into position. 2) A hand lever with several distinct positions and a positive clutch to hold the lever in the selected position. The positive clutch is typically activated with a spring-loaded squeeze handle on the lever so that only one hand is needed to release the clutch, move the lever, then reengage the clutch. 3) Sometimes used in a sexual context since a 'j bar' looks like...you know. 4) If used would be considered an archaic term except you can still purchase them in tool catalogs.
Text fits
Save
Cancel