Liz-ish is a language, similar to English, spoken primarily by Liz's.
Despite the fact that many of the individual words used in English and Liz-ish are in fact the same, knowing one language may not necessarily enable you to speak or understand the other, as the nature of Liz-ish is such that it will only make sense once it has been explained.
It is possible to learn Liz-ish through prolonged exposure to a Liz, though no official translation has been documented thus far.
Liz = Π (Pi) = Can Be Explained if you have forever to hear the end of the tale...
Lizish: On the subject of drinking: "...Plus it makes you forget you're a vegetable."
Lizish: (out of nowhere) I just wanted to see if the penguins have better co-ordination than me...
L1"Where did you get your boots?"
L2 Lizish *Looks down at her boobs* I grew them :D