Avoir les yeux battus = To look tired about the eyes.
La fête battait son plein = The entertainment was at its height.
Battre quelqu’un à plate couture = To beat some one hollow.
[Literally, to beat some one so hard and thoroughly, as to flatten the seams (coutures) of his coat.]
*Les battus payent l’amende = The weakest go to the wall; Those who lose pay.
L’un bat les buissons et l’autre prend les oiseaux = One does the work and the other reaps the advantage; One man starts the game and another kills it.
*Autant vaut bien battu que mal battu = As well be hanged for a sheep as a lamb; In for a penny, in for a pound. (See [Chien].)
Baume
Je n’ai pas foi dans son baume = I have no faith in his plan.