• guffduff,
• buffduff,
• nuffduff,
• juffduff,
• uuffduff,
• yuffduff,
• hyffduff,
• hhffduff,
• hjffduff,
• hiffduff,
• h8ffduff,
• h7ffduff,
• hufduff,
• huffduf,
• hufdaff,
• huffdaff,
• huffdaf,
• huffeduf,
• huffdof,
• huffdufh

The plural form of the word "huffduff" is "huffduffs"

The singular form of the word "huffduff" is "huffduff". It does not have a distinct singular form as it is already a singular noun.