On ne connaît pas le vin aux cercles = You can’t judge cigars by the picture on the box.
Tremper son vin = To water one’s wine.
[Tremper = tempérer, not to wet, but to moderate.]
Vous mouillez trop votre vin = You are drowning the miller.
Violent
Cela est un peu violent = That is too bad.
Violon
Payer les violons = To pay the piper.
Visière
Je lui ai rompu en visière = I attacked (or, contradicted) him openly.