-- Vidu, porkego! Ili vi rigardas. Returnu, porkego. Maldelikato!
There are a few problems with the Esperanto here.
Vidu - means "see" (as a command.) So far, so good.
Porkego - this is the word "pig" with the suffix "eg" added.
Porko is to porkego as house is to mansion. So, I suppose this must
have to refer to some huge, non-existant pig-like creature, which
probably wasn't the author's intent. Come to think of it, if you're
from a country where pigs are considered lucky, "vidu, porkego!" might
be a compliment.
"Ili vi rigardas" contains a gramatical error. Ili is "they", "vi" is
you" and rigardas is "look at" -- but both ili and vi are subjects of
this sentence. You have to guess whether the author was trying to say
"you're looking at them" or "they're looking at you" (which would be
"ilin vi rigardas" and "ili vin rigardas" respectively.)
"Returnu, porkego." - Returnu is a command meaning "return" - but not in
the sense of "come back" but in the sense "turn again" - re-turn. "Come
back" is "revenu" (literally "re-come".)
Maldelikato! -- there's a problem with this one. The adjective
"delikata" is related to the English word "delicacy." That is, if
something is "delikata" - it's concidered rare, pleasing, and high
quality. Maldelikata is the opposite. The problem is that the author
tries to make this a noun by changing the A to O. The meaning of this
is a little dubious to me, and I speak Esperanto more or less fluently.
If he wanted to say "crudeness" it would be "maldelikateco." If he
wanted to say "crude person" it would be "maldelikatulo."
So, given the mistakes, I'd say your translation is as good as any.
-- Look, fathead! She sees you. Turn around, fathead. You cad!
(Except say "they're looking at you" and not "she sees you.)
Thomas L. Rochestro