bellenderous 

Bad. Bell-end-like.

"That Simon Cowell cant open his mouth without sounding bellenderous"

bellenderous by DiscoKiller October 16, 2011

Bellenduous 

(adj., pejorative)

1. The act of behaving in a foolish, trifling, or generally idiotic manner; like a (n.) bell-end;

synonyms:
Stupid, asinine, dumb, foolish, fatuous.

"Jonny, that was utterly bellenduous"

Bellenduous by scaryfishman December 7, 2009

bellanderous

The adjective form of bell end

This drunk old geezer stumbled past me looking like a bellanderous twat, last night.

bellanderous by Reece696969696968 July 14, 2023