Verse 1:

Numpty: Jacob Sonny

Hapless: Bailey Wendy

Pillock: Er

Dippy: Ekrotkaye (Bikini With Goggles And Flippers)

Verse 2:

Dummkopf: Oh

Dimwit: Peh

Stupe: Ukrainian I

Lax: Ukrainian Yi

Verse 3:

Clod And Victim: Deh Stupio And Officer Ef

Doomed: Eee

Numskull: Klasky Csupo The Friendly Robot

Bungle: Girl Csupo The Girlfriend Robot

Verse 4:

Mishap: Reh

Dunce: Ekrot-Junior

Calamity: Soup's i

Ninny: Exponent

Verse 5:

Botch: Oren

Doofus: Pinki

Stumble: @S1LLY_BIOSHY_LOVER

Bonehead: F (Alphabet Lore)

Putz: N (Alphabet Lore)