A mild slang name for a penis, supposedly less offensive that cock, prick, or dick, it does not have the fecal connotations of dingleberry but is used to describe the penis in much the same circumstances by much the same people. In addition it can also be used as a mildly disparaging term for a person who has exasperated you by doing something atypically stupid.
"I had to rush like hell to get here on time. I was halfway here when I remembered I'd left the contract in my desk at home and had to go back for them, I felt like a right dooberry."
Often seen roaming the grounds of the local Starbucks or other pseudo-social environment, the wild doucheberry wears outrageously stupid outfits and believes he commands the adoration of all in the vicinity... while in reality he lives in a sad world of self aggrandizement and false superiority.
Wild doucheberry, three-o'clock... check out those knee socks, loafers and board shorts. Where in the world does that guy get all of that confidence?
Doucheberry is a portable communication device that when used by a non-douche is known as a Blackberry. The Doucheberry becomes such when one is clearly douchebagging with a doucheberry. For instance, using the Doucheberry to impress someone.
Amy: Hey look at that douche over there
Mike: Is he actually using his Doucheberry in a bar? Oh wait! He's trying to look cool for the skank next to him!
Amy: What a douche...
much like a raspberry or "zerburt" a goochberry is where one places the lips on the area between the genitals and asshole and then blow making the lips vibrate on this rather unexplored area.
After that rim job your mom gave me she moved to my gooch and gave me the best goochberry ever!