inflection of rationaliser:
/ inflection of rationaliser:

Alternative spelling of mort-aux-rats

plural of rat de bibliothèque

plural of rat d'hôtel

feminine plural of gueux comme un rat d'église

masculine plural of gueux comme un rat d'église

(informal, derogatory) rathole (squalid place of residence)

rat poison, ratsbane

(figuratively) to miss the boat, to miss the bus

(informal) to do every stupid thing possible, to commit every blunder conceivable, to make gaffe upon gaffe, to do one silly thing after the other