A Kermit is a term for someone who's voice occasionally (or more than occasionally) bears a striking resemblance to the voice of the muppet, Kermit the Frog. This is especially fitting when the subject wears green constantly or is especially fond of green.
Somebody of Bohemian decent that displays the attributes of a common gutter snipe or gypsy. Lives on crisps and fags and has a 90% blood alcohol level. Plays video games all day unless otherwise instructed.
A green fucktard who can't have a nice pleasant wank because his dick doesn't exist because hes a fucking green teddy that is supposed to be a frog with legs and arms he probably came out of shreks ass.