Idiom
be fed sick to the back teethbe fed up/sick to the back teeth
British & Australian, informal to be bored or angry because a bad situation has continued for too long or a subject has been discussed too much.He's been treating me badly for two years and, basically, I'm fed up to the back teeth with it.
(often +
with)
You're probably sick to the back teeth of hearing about my problems!
(often +
of)