The Winkle weiser refers to the male genitalia in a very discrete way. Because of this super secretive alternative version of the word, "penis", anyone of you and your friendsmay go about talking your dirty conversations blatantly in public.
"I wonder what he's got going on under there..."
"Oh, I know! His winkle weiser is superb!"
A portion of one's shirt that is exposed when one forgets to zip up their pants. The term is used in at least one "Simpsons" episode by the character named Nelson.