another name for anuncircumcised penis

To get head while taking a shit in the toilet

An insulting term for a male who has not been circumsized. See also Pig in a blanket

When one is finished masurbating or having sex, and they don't "wash-up" the head of their penis will form a protective coat of dried semen over time. Effectively creating a "Turtle-Head".

Apparently, the person defining this has never seen an actual turtle's head. The proper term for this phenomenon (a turd that is starting to peek out) is a turtle TAIL. Much better description, eh?

A person who's head looks like a turtlehead

when receiving oral sex and your partner is biting you.