by sorrymargeybabey May 27, 2017

Declan - A dick, secretly hates you, uses you to his advantage. Quite immature and dirty-minded, loves porn.
Boy 1: That dick Declan stole my wallet! I though he was my friend!
Boy 2: Dude, don't ever trust him.
Boy 2: Dude, don't ever trust him.
by Browser99 February 2, 2018

When shit in someone's rectum. Picture a french kiss, except instead of mouths it's asses, and instead of tongues its shit.
Damn, I just gave that bitch a Declan and I think I tore her a bit.
I just beat Timmy in a battle of the Declans and now he's all clogged up.
I just beat Timmy in a battle of the Declans and now he's all clogged up.
by pranksterdude540 February 11, 2009

by tom short November 2, 2003

by Arygo October 25, 2007

A VERY annoying non human being who confuses the life out of EVERYONE and he is hated by many. Some ppl like him like his family but other than that he has barely any friend.
I feel sorry for declan
by @_your_awesome June 13, 2020

declanism
/dɛklanɪz(ə)m/
noun
a genetic condition caused by inbreeding characterised by inverted knees, autism and childhood obesity. Rare side effects include;
transgenderism, homosexuality, loser-syndrome.
/dɛklanɪz(ə)m/
noun
a genetic condition caused by inbreeding characterised by inverted knees, autism and childhood obesity. Rare side effects include;
transgenderism, homosexuality, loser-syndrome.
by BigRatJoe July 26, 2023
