Phrase used to simply describe something mind-blowing or deeply philosophical in nature. Often said when too lazy to reply in an equally sophisticated or intellectual manner.
Girl: "Have you ever thought that perhaps the Universe created intellectual beings so it is able to understand itself?"
Guy: "I can't say that I have."
Girl: "It's quite mind-bending."
Guy: "Shit's deep."
Guy: "I can't say that I have."
Girl: "It's quite mind-bending."
Guy: "Shit's deep."
by TheUrbanProfessor November 18, 2011

by ezcarlyle May 9, 2011

A more "gangster-oriented" term which suggests that a group of people (clique) are together in a certain environment, mainly a car. The number can vary depending on how many people there are in a given area.
Those niggas were riding 4 deep in the '69 Camaro.
My homie is having a party. They are 20 deep in the hotel.
My homie is having a party. They are 20 deep in the hotel.
by dima e February 10, 2008

A great british classic rock band from the 1970's. Their music consists of heavier, more raw songs that are the basis of heavy metal, together with intricate, longer and more progressive songs. For example: The song April, about nine minutes of it is a Baroque melody played on keyboard and guitar.
Greatest songs: April, Child in Time, Black Night, Smoke on the Water, Lazy.
Greatest songs: April, Child in Time, Black Night, Smoke on the Water, Lazy.
by "Dana" August 29, 2005

To have done a large amount of cocaine; typically more than an 8-ball in one night. The term derives from President George W. Bush's cocaine use during his college years.
by Wisemoc January 17, 2010

She was so wasted, she was deep in the cups!
Alternative: Man, stuff is strong. I am deep in the cups!
Alternative: Man, stuff is strong. I am deep in the cups!
by janoplokij a'zear The 4th January 1, 2012

1. So far into a task that there is no turning back.
2. Not quite balls deep, but still fully invested in the task at hand.
2. Not quite balls deep, but still fully invested in the task at hand.
The writers of Sharknado were already fist deep by the time they realized how terrible the movie was.
by Nactigal March 1, 2014
