Two more French phrases:
Se mélanger les pinceaux :
Literally: To muddle one’s paint brushes:
To be at sixes and sevens.
Avoir les yeux plus grand que l’estomac :
Literally: To have eyes larger than one’s stomach:
To bite off more than one can chew.
Taken from: ‘Don’t toss Granny in the Begonias: Faut pas pousser Mémé dans les Bégonias’ by Marie-Hélène Claudel-Gilly and Primrose Arnander.