Plonkite

An utter plonker - someone who is exceptionally silly or is just an all round idiot

Fred looses his wallet
"Fred you absolute plonkite"

by bifs101 November 10, 2016

Numptide

Someone who, though normally very intelligent, has done something stupid or clumsy

Pronounced nump-tide

Fred drops his phone
"Fred you absolute numptide"

by bifs101 October 28, 2016