"NEWS FLASH!!! Chucknologists have found Chuck Norris' weak point. Soon after, they were all killed by an unknown assassin who wrote "I am invincible" on the walls in the chucknologists' blood."
A guy or girl (straight or gay) who studies dicks. Or
(B) a person whos gotten laid so often, he knows his stuff.
The upshot and the use is ..... they can tell you by sight if you have a possible std. This guy can tell you if its just rug burn or vd. If its an allergy or something more.
A woman with a great knowledge of handling the cock monster. With precision speed and control she has the power to release the evil huevo juice hidden within the hairy nutsack. Cocktologists have a nack to satisfy your mushroom tip in near seconds.