May offend English to Spanish Other General / Conversation / Greetings / Letters general

Any idea how I can translate this phrase? It is a known phrase in the movie Nightmare on Elm street. Thanks in advance.

Here is some context:

I had a hard-on this morning
when I woke up, Tina.

Had your name written all over it.

There's four letters
in my name, Rod.

How could there be room
on your joint for four letters?

Hey! Up yours with
a twirling lawnmower.

Nyah! Rod says
the sweetest things.