1.a person who lacks the ability to have a meaningful conversation or an intellectual conversation and often makes inappropriate jokes and is usually perverted and not very mature.
2.a very stupid person
3.a word that can be used to describe anything or anyone with any meaning you want just keep the meaning to yourself so they will be confused and not know what you mean.
1.dude your a total alfonzo
2.man you know that new kid he was a total alfonzo.
To rub and relieve sore genitalia.
Man I pulled a muscle in my groin at practice, I could use an alfonzo.