look up any word, like lemonparty:
 
1.
Something that goes beyond the regular word deep, it's very sexual
Have you heard? She went deepdeep, it was the sex
by Enigmatic R November 03, 2011
 
2.
Sexual penetration that fringes on being dangerous to the normal function of internal organs.
Betty's dilatated eend was all over it, like it wasn't something to fear... so I gave her the deep-deep.
by Mr. Grim May 09, 2005