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Lube tube is the female version of a douchebag. Usually identifiable by the wearing of uggs and a northface. If wearing sweatpants too, then definitely a lube tube.
While walking around the mall I saw a whole pack of Lube Tube's.
Lube tube by lthater December 2, 2009
slang term for vagina or anus, in the case of gay men.
Man, she has one hell of a tight lube tube.

or
She don't need no KY jelly, her lube tube is slick.
lube tube by slickbillie August 16, 2009
Two people covered in lubricant holding eachother forming a ring shape. A third person also lubed up penetrates both individuals using his hands or feet.
Jill: I’m so bored
Samuel: I think we should do a lube tube with eachother to not be bored
Lube Tube by BundaBandit789 April 24, 2024

Tube Lube 

Alcoholic beverages on the train; road sodas on the tracks; pre-game beverages to lubricate you on mass transit.
Man, those tube lubes did the trick.
Tube Lube by MJB730 January 29, 2017

lube the tube 

When the vagina becomes wet because the woman is sexually aroused. Can also refer to putting lotion etc. into the vagina for extra lubrication.
She started to lube the tube before they did it.

lube my tube 

lube my tube is what I have to do whenever I jack off.
Every morning before I take care of my morning wood, I have to lube my tube first.
lube my tube by USAF Cadet August 13, 2021