1. most covered with or containing soap
Usage: superlative form of soapy
2. most overly sentimental or melodramatic
Usage: informal; superlative form of soapy

Examples

• This is the soapiest water I’ve ever seen.
• Her hands were the soapiest after washing all the dishes.
• That was the soapiest TV drama of the season.
• The soapiest romance novels always make me cry.
• The bathtub had the soapiest bubbles after adding too much soap.
• Critics called it the soapiest movie of the year.