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

bellenderous 

Bad. Bell-end-like.

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

bellenderous by DiscoKiller October 16, 2011

bellendicus

An idiot found in Ancient Rome.

"Bellendicus you fool! You've just offended the Emperor!"

bellendicus by juankerr April 3, 2016

bellendoscope

a device used for measuring the inate bellendedness of a person. (particularly male). see bellend

Doctor, bring me the bellendoscope

bellendoscope by guido January 23, 2004

Bellendius 

End of a man's winky

"Yo my slime, wanna whip one out?" Tyrone
"Fuck off you gay queer, stroking bellendius is not Somin I into" Shaquente
"Aight bet" Tyrone

*Proceeds to kill Shaquente*

Bellendius by CBTfetishiser March 4, 2021