1. most full of or covered with suds (foam or froth from soap)
Usage: superlative form of sudsy

Examples

• This is the sudsiest soap I’ve ever used.
• The sudsiest part of the washing machine cycle creates the most bubbles.
• Among all the shampoos, this one produces the sudsiest lather.
• The children played in the sudsiest section of the bubble bath.
• Which detergent creates the sudsiest wash water?
• The sudsiest beer had a thick foam head on top.