A large boorish man who threatens others with gay sex. A lehman is often a bear.
That lehman cut in line and threatened me with anal rape!
by Hank Chinaski January 29, 2006
Lehman is a family not to be messed with. Known for fighting and not taking B.S. from anybody.
"Oh shit! its Lehman!"
by Bruno Jamesonn April 14, 2009