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
1 more definition
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