Plat
Il nous a servi un plat de son métier (or, de sa façon) = He played us one of his tricks.
On mit les petits plats dans les grands pour le bien recevoir (fam.) = They spared neither trouble nor money to receive him well; They received him with much fuss.
Il a mis les pieds dans le plat (fam.) = He put his foot in it.
Plâtre
Ce mari bat sa femme comme plâtre = That husband beats his wife like a dog.
Essuyer les plâtres = To live in a newly-built house (and therefore damp). (See [Essuyer].)
Battre son plein = To be in full swing.
Plein comme un œuf (fam.) = Chock-full.