To lubricate (a car's joints, for example).(verb-transitive)
A lubricant, especially one applied to machinery: silicone lube. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "lube" in a sentence
"Best all around lube is Gunk motorcyle chain lube (without moly of course) goes where you want it, turns into a light water resistant grease and stays there."
"Choke tube lube is fine and dandy ... for choke tubes."
"For full-length resizing, case lube is highly recommended."