Derived from the child-doctor prodigy Doogie Howser. It refers to herb-ass prodigies. Kids that are the wackest of the wack.
That dude is a herb-- a regular Dookie Howser.
The act of sandwiching a fresh steamy piece of fecal matter between the married ass-cheeks of one partner and the second (female or fat "man-tittie" endowed) partner's tits.
Ass to boob poop-fucking.
Last night I was banging this chick, and she was like, "give me a 'doogie howser,'" and I was like, "what the hell is that?" "NO," she said, "a DOOKIE HOWSER -- as in HOUSING a DOOKIE!"